Author: Les Ober, Geauga County OSU Extension

Vacuum Tubing Systems, An Update

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This is an update for an article I wrote on the Ohio Maple Blog way back in 2013. It was entitled “Tubing or Pump: How to Optimize Your Tubing System’s Performance.” A lot of knowledge has been gained since that original article. In fact, a whole new type of gravity tubing system, 3/16″, has been introduced and has been overwhelmingly accepted by maple producers.

When we talk about tubing systems we have two roads to travel. One is a gravity system and the other is a vacuum system. A conventional 5/16″ gravity system is not much different from running sap into a bucket. It does save labor but the yield is much the same. But when we add vacuum to a tubing system, we can increase the sap yield 5 to 7% for every inch of vacuum we place on our system. For example, if we produce 15 inches of vacuum in our lines, we should be able to double our sap yield.

The definition of vacuum is the absence of air. The level of vacuum that is achievable is determined by the barometric pressure for any given day. This means that our vacuum level can never exceed the barometric pressure in the location of our sugar bush. There are factors that have a direct effect on barometric pressure. One is altitude. As the altitude increases the barometric pressure decreases. At sea level, 0 altitude, the average barometric press can be 29 inches and at 2000 feet the average barometric pressure is approximately 28 inches. In addition, barometric pressure changes under different environmental conditions. It can change multiple times during the course of a day. This is most important when we are boiling syrup because it changes the boiling point of water. But if we are running a vacuum pump under a low barometer at an altitude of  2000 feet, we might also struggle to maintain 27 to 28 inches of vacuum even on a very tight, well maintained tubing system. This statement also emphasizes the importance of managing leaks in a vacuum tubing system. Every leak adds additional air to the system making it harder for the vacuum pump to achieve and maintain high vacuum. The amount of air moved out of a system is measured in Cubic Feet per Minute (CFM). It is important to be able to differentiate between Inches of Vacuum and CFM. To successfully raise your vacuum level, you have to be able to remove the air from your tubing system. Once the air is removed, your vacuum level will increase unless you are letting air in through leaks.

Now let’s look at what happens inside a maple tubing line. A conventional vacuum pump is designed to move air not liquid.  This means that a vacuum pump is pulling air out of the system while the trees and the leaks are adding air into the system. A properly sized vacuum pump with a proper CFM rating will be capable of removing air faster that it is introduced. The only thing that will slow that process is line size. If your line diameter is to small, the air movement will be restricted requiring more time for the pump to clear the air from the lines. This is commonly referred to as line loss. The smaller the line, the higher the line loss and the longer it will take to re-establish your peak vacuum level. That is why tubing design and pump size are so important in a conventional vacuum system. It is also very important to note that in a vacuum system, liquid does not need to be present to create a high vacuum. The movement of sap is secondary. As the vacuum level builds it creates a siphon that pulls the sap along with the air. In fact, when we look at the space inside a cross section of tubing we should strive to maintain a ratio of 60% air and 40% liquid. If the liquid level increases or is uneven (wavy), then the air movement will be restricted and the inches of vacuum will drop.

Let’s look at some other alternatives to move sap through a tubing system. One of the more popular alternatives to conventional vacuum is the diaphragm pump. Let’s look at what happens with a diaphragm pump. Diaphragm pumps are water pumps that unlike vacuum pumps are designed to move liquid – not air. Because they move water and not air, their capability of creating CFM is minimal at best. Manufacturers tell us that these pumps are capable of creating 20 plus inches of vacuum. How do you create a vacuum with these pumps when their ability to move air measured in cubic feet per minute is limited? In a sugar bush, your lines are hopefully sloped toward your tank and gravity allows sap to flow toward the pump. Once the pump picks up the sap on the intake side, it then accelerates the flow in the line. The pump simultaneously pushes the sap under pressure through the outlet. Because the pump is pulling hard on the sap and pushing it through the outlet, it creates a solid column of sap. As this column of sap moves down the line, the air and liquid combines thereby creating a negative pressure on the backside of the column. This negative pressure can be measures with a vacuum gauge. This continues until the sap flow slows down. As the sap flow slows the vacuum level begins to drop. Once the flow is terminated, the pump can no longer push sap through the outlet, and the negative pressure will ultimately disappear. If you run the pump without liquid, you risk damaging the pump. The biggest thing to remember is that a $200.00 diaphragm pump will not remove air from the system by itself. It has to move liquid to create a negative pressure on the backside of a column of sap. I know the above statements will create controversy from those that are using diaphragm pumps successfully. There are ways to tweak a system to create increased vacuum during low flows but the ultimate end is reduced or no vacuum. The other thing to keep in mind, if you want to be successful with a diaphragm pump, is to keep your tubing system free of leaks. Leaks will result in poor pump performance. Also protect you pump from freezing and ice in the lines. Ice can damage diaphragms. Diaphragm pumps are a good choice in small operations where an increased level of vacuum during a good run is better than no vacuum at all. But diaphragm pumps were never intended to a replace a conventional vacuum system and they never will.

Author: Les Ober, Geauga County OSU Extension

2018 Annual Maple Production Results: NASS Survey

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2018 was better than the abysmal years of 2016 and 2017, and Ohio production was reported (USDA NASS survey) at 90,000 gallons – good enough for the 8th best state in the nation. Let’s take a deeper dive into the report and see what else we can learn.

In both 2016 (70,000 gallons) and 2017 (80,000), warm short seasons plagued Ohio. Most producers I talked to did not have a great year in 2018, but they at least were more respectable. Respectability comes in the form of a paltry 10,000-gallon increase in production. I know of five producers in NE Ohio that could have accounted for those 10,000 gallons. Now let us look at the number of taps. It remained the same as 2017, 400,000 taps for the entire state of Ohio.  The only believable statistic is the yield per tap of 0.225 resulting from the low sugar content in the sap. Let us compare how neighboring states did. Pennsylvania produced 142,000 gallons, and Michigan produced 125,000 gallons. That has to be a tough pill to swallow for any Buckeye supporter.  The big winner, no surprise – Vermont, cranked out 1,940,000 gallons. New York overcame a lot of cold weather to produce their new high mark of 806,000 gallons, and Maine produced 539,000 gallons, down from 709,000 in 2017, but they experienced a deep freeze late in the season.

If my remarks seem somewhat caustic, I apologize. Yes, you can blame it on the weather or you can blame it on apathy on the part of the producers in their reporting. Unfortunately, it has become a well-known fact that Ohio maple producers do not want to report their production. In addition, it could be the reporting system is partially to blame. Let’s face it, with a large portion of the syrup being produced in the Amish community, and a reporting system that depends more and more on digital technology, there may be a problem. I back this up with the fact that only 400,000 taps were reported, and if that is the case, the number of taps in Ohio has literally stood stagnant for almost ten years. No expansion in Ohio! I flat out do not believe this to be the case. I cannot prove it but I think there are 400,000 taps in northeast Ohio alone.

So why is reporting important and am I justified in my frustrations? If you believe what is reported and you are a maple producer, you are now involved in a stagnant agricultural industry that is going nowhere fast. Whether you the producer believes it or not, that fact does not matter. It is what the local and state governments believe that counts. It is what The Ohio State University, the state’s premier land grant institution, believes that counts. Right now House Bill 66 sits in front of the state legislature. If the bill passes and is signed into law, maple producers would receive a significant reduction in their land taxes. At the very least, the bill’s consideration may change the way counties look at CAUV (Current Agricultural Use Value) for maple producing landowners. In addition, OSU’s College of Food Agriculture and Environmental Sciences is being asked by the Ohio Maple Producers Association to employ additional staff to work with maple producers. Do you think the 2018 USDA NASS report is incentive to act on that request? More than anything else, what kind of message are we sending to Ohio consumers? If all they hear is the negative news of a stagnant industry, will they believe that we have a good supply of maple syrup in Ohio or will they resort to buying Vermont maple syrup off the grocery shelves? It is time that we look at how we measure the value of the Ohio maple syrup industry to Ohio’s overall agricultural economy. As producers, we owe it to ourselves to see that the majority of the syrup we produce goes in the accounting book. The future of the Ohio maple syrup industry may depend on it.

Author: Les Ober, Geauga County OSU Extension

When to Tap?

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The last 10 days of January 2018 had some very good weather for sap flow. If you live in the southern states or even southern Ohio, the decision to tap was a good one because you are never guaranteed a season past mid March. However, the decision to tap early becomes a lot more uncertain for producers further north. I present three maps for your consideration. The top graph is the temperature forecast for NE Ohio from AccuWeather. In my experience, their 30 day forecasts have been reasonably reliable.  The solid orange line is the average historical high temperature for the given dates, and the solid blue line is the historical low average. The broken orange line is the daily high forecasted temperature and the broken blue is the forecasted daily low temps. Once we get past the 5th of February, it appears we are going to drop below normal and stay there through the end of the month. Again this is a 30 day outlook, but it does match up with what all of the local weather stations are predicting.

february Forecast

The next graph is NOAA’s Weather Forecast for February. This Graph is indicating we will have equal chances of being above normal, normal or below normal, at least for Ohio. Looks like the likelihood for above normal weather extends up through New England.

Februar Temp

The last graph is the AccuWeather Forecast for Underhill, Vermont, home of the UVM Proctor Maple Research Center. I picked this location because they do a marvelous job of tracking weather data. The temperature graph appears to be slightly milder than the Ohio graph, with a couple of above normal spikes.  The thing to notice is the sharp rise in daily low and high temperatures at the end of February.

Underhill

I hope this information will help to make your decision easier and that you will seek out these planning resources in future years. Keep in mind that these are long-range forecasts with considerable margin of error.

Author: Les Ober, Geauga County OSU Extension

OSU Updates the Hobby Maple Syrup Production Fact Sheet

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factsheet

One of the most popular fact sheets on the Ohio State University Extension’s Ohioline has always been the Hobby Maple Syrup Production fact sheet. Ohioline is the source for all of the fact sheets published by OSU Extension and the College of Food Agricultural and Environmental Sciences. The original fact sheet was written by OSU State Forestry and Maple Specialist Dr. Randall Hiligmann emeritus. That fact sheet has served as a guide for literally thousands of new aspiring maple producers.  Anyone who has made maple syrup in their backyard knows that it is something that the whole family can enjoy. At the end of the season, you are left with some fond memories and a container of maple syrup that the entire family can enjoy. It may not be the best maple syrup you have ever tasted, but it is your maple syrup. That is what makes this hobby and the publication popular.

It has been an honor to work with co-author OSU Forestry Extension Specialist Kathy Smith to bring you an updated version of the Hobby Maple Syrup Production fact sheet. You can download a copy of the new fact sheet here.

May your upcoming maple season be long and sweet!

Author: Les Ober, Geauga County OSU Extension

 

2017 Maple Syrup Production in Ohio Better Than 2016

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2017 production results were published in the USDA NASS survey on June 9th. For Ohio, the numbers were an improvement over 2016 but only marginally. Ohio produced 80,000 gallons, a slight improvement over the 70,000 gallons produced last year. Once again, 75% of the producing states improved their production, and for many, it was a major improvement.  New York and Maine each added close to 50,000 gallons over last year’s production. The nation’s leading producer of maple syrup – Vermont – again finished right below 2 million gallons.  Vermont is in no danger of losing its crown. Finishing out the top 5 were New York (760,000 gallons), Maine (709,000), Wisconsin (200,000) and New Hampshire (154,000). Ohio continues to slide in its ranking to a disappointing 9th place. However, Ohio producers did increase production over 2016 by 10,000 gallons due to an early start. The earliest start date in Ohio was January 1, 2017, 25 days earlier than 2016. The problem is that when you look at the average start date across the state it was February 11th. That was a problem given the mild weather conditions we experienced in January, and you will also remember we set all-time record highs on February 24th with a balmy 77 degrees Fahrenheit. Ohio’s season ended early around March 16th. Syrup per tap, a measurement where Ohio was once a leader, dropped to 0.20 gallons per tap – a second subpar year in a row for the Buckeye State. By comparison, Vermont recorded their earliest start, also on January 1, with their average starting date February 24th, but had almost an extra 3 weeks of production on average with an average closing date of April 10. Both New York and Maine experienced similar scenarios.

One final statistic that has shown a modest improvement over last year, but is still below 2015, is the number of taps reported for Ohio – 400,000 taps in 2017. For anyone working closely with the Ohio maple industry this statistic is mind boggling given that expansion has occurred in sugar bushes across the state for the last 5 years. The only explanation for this is that a large portion of the syrup being produced in Ohio is going unreported. Another statistic that tends to cast suspicion on the validity of Ohio’s maple production statistics is how Ohio producers choose to market their syrup. In 2015, 44% of Ohio producers sold to the retail market. That number dropped to 30% in 2016. At the same time the bulk sales market expanded from 32% in 2015 to 43% in 2016 (Note: these numbers are always one year behind the current year). Examining market trends of the Big 3 states (Vermont, New York and Maine), the largest percentage of their syrup is sold as bulk (46%, 86%, and 93% in New York, Vermont, and Maine, respectively). It makes you wonder how much syrup is actually being produced in Ohio and is being sold out the backdoor to eastern and western packers. If this true, it is sad because the demand for maple syrup is on the increase in Ohio and the stores are flooded with Canada’s and Eastern states’ syrup.

So what have we learned from the last several maple seasons and how can we improve our maple production?  The one thing that is clear is that during the last five years, we have not experienced consistent “normal” seasons for maple production. The years of 2017, 2016 and 2013 were all warmer than normal, and if you wanted to maintain average production for your operation you had to start early to get the early runs. This was especially true in 2017. The Polar Vortex years of 2014 and 2015 presented their own challenges due to the extremely cold winters and late season starts that we experienced. The fact is, when the weather is right, make your move and tap your trees. In most cases, you will never make up for production lost early in the season by trying to extend the season at the tail end. Another reason to tap early is syrup quality. It is much easier to make a quality product in the first half of the season rather than while fighting increased bacterial contamination and slowing tapholes later in the season. Hopefully 2018 will be a banner year for Ohio maple producers, we are long overdue for a good one.

Author: Les Ober, Geauga County OSU Extension

The Ohio Maple Syrup Season: Moving Forward?

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budded-red

Photo caption: Red Maple in Middlefield Township, Geauga County, Ohio, March 1, 2017

It is March 2nd, and we have just witnessed the warmest February on record in the Cleveland area. The 77 degree day that we experienced on Friday, February 24th, shattered every record for a high temperature in the month of February, and it was also the highest winter temperature in Cleveland for any winter month. The way the month of February ended cast a dark shadow on our ability to make maple syrup in Ohio. Now we are in March and the cold temperatures have come back but where does that leave us?

Many trees have already budded out. All of the silver maple and many red maples that are out in the open have full buds. The sugar maples though have not yet budded and this is one of the main reasons why we prize and select for this species of maple. Given the conditions we have had to date, one thing is for certain – if you have not tapped yet, the potential to make a significant amount of syrup is gone. The next warm spell will likely end the season for everyone.

Now let’s address the producers that have been making syrup and have the potential to make more syrup. If you have red maples, make sure you look at them very carefully or just pull the taps, especially trees in the open such as along a field edge or road side. Several producers with large populations of reds have called it quits altogether due to budding. For those with sugar maples, the potential is there to make more syrup, but you need to be careful not to spoil that sap by collecting sap from red maples too that have already budded.

At this point, a producer’s biggest enemy is bacteria. Everything needs to be cleaned out and drained. You could literally see high levels of bacteria building in the lines and tanks over the previous week of warm weather. Many producers just kept the vacuum pumps running during that period and hoped for the best. Many collected a fair amount of sap due to weather fronts that pushed through. I am certain it paid to operate the pumps keeping lines clear and tapholes as cool as possible. If you shut off the vacuum because the trees quit running, I hope you were using check valves because this would have given you some degree of bacterial protection at the taphole.

Now that the cold weather has returned, what kind of syrup will we make? The answer will come once your fire up the evaporator. If the sap is “buddy”, you will know it. And if it’s not, you’ll most likely be producing a darker grade of syrup. That is not necessarily bad because most producers made a good batch of Golden Delicate early on. If the producer chooses, the two could be blended but taste will determine that. You can blend for color but you cannot blend for taste. If your syrup has a slight off flavor from sour sap or budding, it will show up in the blended grade. There is virtually no way to mask a syrup’s off flavor once it is there, and there is no reason to ruin good syrup that you have already made. That is why some producers already chose to call it quits rather than risking a batch of off-flavored in the sugarhouse.

Producers that tapped in early January have had an average season. The biggest question is, after last year and this year, have we established a new normal for Ohio maple syrup production or maybe the two distinct zones of production in Ohio are just consolidating. I say this because if you produce syrup near the Ohio River, you would normally tap in January. If you live in NE Ohio you would normally tap in mid-February. Maybe we are now seeing a climate shift that will establish a universal tapping date for the entire state. After this year, producers must finally realize one can no longer tap solely by the calendar. If you produce maple syrup in Ohio, you must to be ready to go by New Year’s Day. If the season does not start until February, so be it – but at least you will be ready. Climate change is just that – change, and the only certainty in life is change. We change our systems, we change our tapping technology, we adapt.

Author: Les Ober, Geauga County OSU Extension

Should I Tap?

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I got up this morning (January 12, 2017) and it was 60 degrees! All I could think of was that a lot of my friends who make maple syrup saw the same thing I did and headed straight to the sugarhouse to find their drills. To say the least, 60 degrees in early January is unusually warm and the recent weather pattern has everyone scratching their heads.  The decision of when to tap is one of the most important decisions you will make in any given year – hear are my thoughts on the subject.

First a little science! To quote New York Maple Specialist Steve Childs, we need to know “how does sap happen.” Sap flow is the result of sap rising and falling through the tree’s vascular system known as sapwood. Sap flows to provide nutrients to all of the vegetative growth above ground. Sap flows from the roots to the very tips of branches nourishing the buds that will develop into leaves. This process is on a phenological clock that limits the amount of time that we have to intercept a very small portion of that sap to convert into maple syrup. Once the buds emerge or “break”, sap is no longer usable for syrup production. Sap rises because of fluctuation in spring temperatures that we call the freeze-thaw cycle. As a tree freezes, a suction draws nutrients and water from the ground and through the roots. Once the temperature rises above 32 degrees Fahrenheit, gases begin to form inside the tree which then pushes the sap through the sapwood all the way into the very tops of the branches. Considerable pressure is produced in the process. In fact, pressures have been measured at 40 psi (pounds per square inch). When you drill a hole in the tree sap leaks out into a bucket and continues until the tree quits pushing sap or it freezes again. We can increase that flow by applying vacuum to the tap with a vacuum pump and tubing. If temperatures stay warm, sap flow will gradually decline; however, sap may flow up to 72 hours without the repeat of the freeze-thaw cycle. Without freezing, the sap level in the tree drops below the taphole and flow stops. Once the temperatures drop below freezing, the whole cycle starts again. This is a very simple explanation of a very complex process.

What else may stop sap from flowing? Once a taphole is drilled into a tree, the maple season clock starts to run. Using buckets and open tapholes, that window of opportunity is around 4 weeks before the taphole starts to heal up and sap flow diminishes. This healing is the result of the taphole being exposed to air and from the growth of bacteria in and around the hole. Air dries out the taphole and supplies oxygen to bacteria that coat the hole with slime eventually sealing off the exposed sap wood – similar to what happens when you get a cut. Blood flows for a while but eventually it coagulates and the bleeding stops. A vacuum tubing system is different in that the taphole is not exposed directly to the outside air and sap is kept flowing under vacuum for a longer period of time. If operated correctly, the taphole will be kept free of bacteria for most of the season. This can be accomplished two ways. First, you can keep the vacuum running continuously whenever the air temperature is above freezing. This keeps the sap moving, keeps the lines clear, and keeps the taphole cool. Producers have found that they can gather enough sap during extended warm periods to make enough syrup to pay for the cost of running the pumps during that period of time. The other method is to us a vacuum system with check valves to prevent bacteria-laden sap from the lines being pulled back in the tree. A tree will draw sap from the lines just like a hose will siphon water from a tank when you turn the tap off. The sap, because it has been exposed to the tubing, has some amount of bacterial contamination – however slight – and will speed healing of the taphole if drawn back to the tree. Check valves close when vacuum is released, and these simple devices seal off the tapholes from sap backflow.

Now to answer the question – “Should I tap during an early warm spell?” My suggestion is first to obtain all the information from a variety of sources that you can about upcoming weather patterns. Next, consider your system. If you are a small producer or a backyard producer looking for the ideal 30 day window, January is most likely too early to tap. Your taps may dry out and you may miss some of the really good runs in late February and March. You could re-tap but that is hard on the tree and is never recommended. The best approach is to watch the weather and be ready to get those good runs in February and March. For those of us who have vacuum tubing. We can stretch the season with taphole sanitation techniques. Watch the weather and tap when the opportunity arises. You may get some very good early runs. If you are going to tap now make sure you change out last year’s spouts and/or use check valves. You have to create a closed system at the tree to prevent taphole healing. If you have enough taps, consider tapping the side of the woods that runs early now and then tapping the later running sections a bit later on the calendar, effectively spreading your season. The best you can realistically hope for is two months before your taps start to shut down. I have personally kept my system flowing from the 10th of February to the 10th of April with the use of check valves and continuous vacuum operation. No matter what you decide to do, it is a gamble. Here is hoping your decision pays off!

Author: Les Ober, Geauga County OSU Extension

Using the New Maple Syrup Grading System as a Marketing Tool

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Two years ago this fall, the maple syrup industry completed the adoption of a new system for grading syrup. The process took a long time starting back in 2011. The International Maple Syrup Institute took the old USDA Standard grades that included USDA Grade A Light, Medium and Dark and Grade B and transformed them into four Grade A categories that would include all saleable syrup. Two important additions were the flavor descriptors and the %Tc (light transparency) range. This allows consumers to compare grades based on flavor, and the new system also opens the door for standardized instruments to be used for color determination.

The four Grade A categories are Golden Delicate, Amber Rich, Dark Robust and Very Dark Strong. You will find that Golden Delicate parallels the old Light Amber Category. Amber Rich includes all of the old medium and the very top of the Grade A Dark Category. Dark Robust includes the rest of the of the Grade A Dark category and the very Top of the old Grade B Category. The Very Dark Strong Category includes the rest of the syrup that was formally classified as cooking syrup. Most very dark syrup that is produced and does not have an off flavor or a density problem will fall in the Very Dark Strong category. If syrup has an off flavor or does not meet the minimum 66 Brix level or overshoots the maximum 68.9 Brix standard, the product will be marked as commercial syrup and priced accordingly. It should be pointed out that the retail price in most markets does not change for any of the top 3 grades, and many producers sell their Very Dark Strong syrup for the same price.

The new grading system allows producers to not only sell syrup based on color but also on flavor.  After all, flavor is what sells maple syrup! Flavor is a component of maple syrup judging that is quite subjective. Everyone has their own idea of what maple syrup should taste like. It is almost unfair to put maple syrup in a jug that has not been graded. It would be like labeling a cut of meat as beef. You as a consumer would be buying a package of meat without knowing if you were taking home a Porterhouse steak or stew meat. Today’s consumers are getting smarter about what they buy. Why would you try to sell them mystery syrup that could be Very Dark Strong, Golden Delicate or something in between? Your business would be missing out on an important part of marketing, interpreting and understanding what the consumer truly wants.

There is however, one word of caution about selling graded maple syrup – the grading better be right! Accurately grading your syrup is where spectrophotometry comes in. Today, for 60 to 80 dollars you can buy a Hanna Checker. There are more accurate and expensive models available for commercial packers, contest and grading fanatics, but even the most basic instrument is based on the transmission of a beam of light through the sample. As the product darkens, the percentage of light transmitted (%Tc) decreases. Once you have a reading, you match the %Tc light transmission reading on the device to the %Tc range of one of the new grades. Each grade has a unique %Tc range. Over the last two months putting together my maple syrup evaluation programs, I have had a chance to look at dozens of samples of maple syrup, some graded and some not. Many times these samples were so close it would have been impossible to grade accurately on a handheld temporary grading kit. This new instrumentation makes it easy to grade syrup and at an economical price point. This is just another evolution in the syrup maker’s production cycle that is grounded in pure science – start to finish.

Overall the new grading system has been well received. At many fairs and shows, we have heard conversations about the characteristics of each individual grade. Implementing sample tasting is a great way to interact with your customers. The customers themselves seem to really like the Amber Rich grade but more and more are trying and enjoying Dark Robust. This has been a learning experience for both producers and consumers alike. It is important to note that grading in many states is not mandatory, and Ohio is one of them. The other factor to remember is that most consumers are not familiar with how maple syrup is graded. Most consumers compare your maple syrup to your average table syrup which has no identity. I believe this is where maple producers can learn from the wine and craft beer industry. Those industries have built entire marketing campaigns around highlighting the various unique characteristics of their product. Is it out of the realm of possibility that we might someday include a tasting room in our sugar houses? Think about it, this could add a whole new dimension to the way we market maple syrup.

Author: Les Ober, Geauga County OSU Extension

Record Crop of Maple Syrup Produced in the United States and Canada

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Based on the word from Ohio producers attending annual maple manufacturers’ open houses, it was a big year in New England for syrup production. Many of the big northern Vermont and New Hampshire producers were not present, they were still boiling syrup. When the steam cleared and the last syrup was drawn off, Vermont produced a record 1.9 million gallons of syrup in a single season. Let that sink in, it was only 10 years ago that we struggled to produce 2 million gallons collectively in all of the United States, and in 2016, the state of Vermont produced almost 2 million gallons on their own! Vermont previous record was 1.48 million gallons set in 2013. The United States produced 4.2 million gallons in total, the highest amount in modern record keeping. New York (707,000), Maine (675,000), Wisconsin (235,000), and New Hampshire (169,000) rounded out the top 5 states.

With all the syrup produced in the United States, you can only imagine what they did “north of the border.” Yes it was big, it was really big. The Canadian crop is projected at 13.5 million gallons. This would set a new record for Canadian maple syrup produced and individual provinces are expected to set records as well. You can rest assured that there will not be any shortage of pure maple syrup in the world for some time and one has to wonder what the effect will be on maple syrup prices, especially bulk.

So what about Ohio? Unfortunately, our 2016 did not share in the record crop celebration.

Ohio Maple Producers knew 2016 was going to be a disappointing year for maple syrup production, and the USDA NASS report verified our worst fears. 2016 was a real bummer for the entire state. Total production for Ohio dropped from 115,000 gallons in 2015 to 70,000 gallons in 2016. Yield per tap, generally a good production indicator, averaged 0.275 gallons per tap in 2014 and 2015 but only 0.189 gallons per tap in 2016. Normally Ohio bests most states in production per tap, but this year’s production was on the verge of disaster. The sugar content of sap (often near or below 1%) certainly did not help the overall per tap production of syrup.

Another statistic that was very puzzling was the total number of taps recorded for 2016. This year the number of taps in Ohio dropped from 450,000 to 370,000 taps. In the last 10 years, the number of taps in Vermont and New York almost doubled – Vermont is just shy of 5 million taps and NY is pushing 2.5 million. What is going on in Ohio? Why are we in a statistical state of decline? A better question may be – Is there really a decline? Working with OSU Extension and the Ohio maple industry for the last 18 years, I have witnessed an overall expansion of the industry. It has not been unusual to see the number of 3,000+ tap operations increase every year. I know of several new operations that just eclipsed the 10,000 tap mark. While we will never be in the same category as New York or Vermont, our maple industry is growing. However, when you look at the statistics, we are not recognized as a growth industry – we are an agricultural industry in decline.

The reality is that a large portion of Ohio’s maple syrup production is not being reported. There is an old saying that “if it is worth doing, it is worth doing well.” I believe that Ohio maple producers are doing a good job of producing syrup, but for some reason they are reluctant to let the world know how good of a job they are doing. Because the world rewards those that achieve excellence, it is crucial that Ohio producers improve on their reporting habits and the reward will undoubtedly be increased consumer demand and higher retail sales.

Author: Les Ober, Geauga County OSU Extension

 

Handling Your Maple Syrup Crop after the Season

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 Every once and awhile it is good to go back and revisit an old post with a good message – here is one from 2013 with a few additions.

Maple syrup is often referred to as “liquid gold.” Increased demand for maple syrup and the escalating value of this year’s crop has added new meaning to this term of endearment. Once the season is over, you need to use a little TLC when it comes to storing maple syrup so it will maintain its quality and value. If you have not sold all of this year’s maple syrup and have some left in the sugarhouse, you need to pay careful attention to the inside temperatures of those buildings. With all of the recent hot weather, syrup stored in non-insulated structures can quickly reach high temperatures and spoilage can occur. You may think you safeguarded your product by packing the syrup hot in a sealed container. Maybe not!

Most syrup is stored in stainless steel barrels that were packed in February and March. Syrup should go into barrels hot and sealed with as little air as possible. The drums then cool to the ambient temperature with the syrup soon reaching the same temperature inside. Steel as a general fact transfers heat and cold well.  The syrup on the inside of a steel barrel will remain cold for a long period of time due to its viscosity and mass. However, this also means that if the steel on the drum’s exterior warms quickly to 80 degrees Fahrenheit or above and stays warm, the result is condensation that will develop between the warm steel and the cool syrup on the inside. If this moisture develops in the interior air space, molds can form. This is the same thing that happens to jugs when they are not heated properly to 185 degrees. If the product is not above 66 Brix, syrup can even ferment. The worst culprit for spoiled syrup is a partially-filled drum that is then topped off with hot syrup. This scenario can be avoided by repacking the entire drum between 150 and 180 degrees Fahrenheit. It is always best to completely fill a drum with hot syrup right off the filter press, seal it, and store it.

The best solution for long term storage is to build a cool room. You notice I did said cool, not cold. A walk in cooler would be the best case scenario but most producers cannot afford such a luxury. Take a small space big enough to hold several drums of syrup. This could be a closet or small room in a building. Insulate the room and stick a window air conditioning unit through the wall. When temperature exceeds 80 degrees Fahrenheit for any length of time, kick on the air conditioner and cool the room to just below 70 degrees. At that temperature, the syrup will stay relatively cool in the barrels. Your biggest struggle is to get the syrup through the hottest months of the year. Another trick is to rotate the drum occasionally, this moves the syrup inside the drum and should dissipate any moisture that forms on the interior metal wall of the drum within the residual air space, thus reducing the chance of spoilage if the drum was packed correctly to begin with.

Author: Les Ober, Geauga County OSU Extension