Will the dry weather affect syrup production next spring?
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Whether you anticipate tapping in your backyard with a half dozen trees or you wish to begin a bit more aggressively with several hundred taps, the core techniques and methods are the same. This guide will introduce you to basic maple tree identification and then prepare you for the basics of tree tapping, time of tapping and the logistics of getting started in the woods.
Leader Evaporator Co. Check-Valve (CV) spouts and adapters incorporate a small, free-floating ball which is designed to reduce or prevent backflow of sap into the taphole during freezing, when leaks in the tubing system occurs, and when mechanical releasers dump and introduce air into the system. Several studies over nearly a decade have compared sap yields from CV adapters and spouts to various non-CV spouts and adapters.
This model estimates the proportion of clear, conductive wood in the tapping zone of an individual tree each year (for 100 years) based on the values input for tree diameter, tapping depth, spout size, number of taps, and dropline length. This is equivalent to the chances of tapping into conductive wood in this tree each year Ð if 80% of the wood in the tapping zone is conductive, you have an 80% chance of hitting conductive wood when you tap that tree. The model can be used to estimate whether various tapping practices are likely to be sustainable. A more complete description of the model and guidelines for its use can be found in the companion technical report “A Model of the Tapping Zone”, which is available on the UVM-PMRC website (http://www.uvm.edu/~pmrc).
In a normal sap flow event, trees exude sap during the above freezing period and replenish that lost water by ÒsuckingÓ it up from the roots during the below freezing period. If on a tubing system, during this negative pressure period they tend to draw sap back into the tree from the dropline. Sap, once it enters the droplines, is quickly contaminated with microbes. When they are drawn back into the tree, tap hole closure is initiated. The problem is compounded in 3/16- inch tubing because, unlike 5/16-inch tubing, the smaller diameter collection tube remains full of sap. A Cornell study found that up to 12 feet of sap in a 3/16-inch tube can be drawn back into the tree during this recharge time. CV spouts are one proven method of limiting this drawback with 5/16 inch tubing. The question was: will they also be effective with 3/16-inch tubing that is full of sap?
Could the sugar maples have broken bud during unusually warm January temperatures?
Given our extensive research experience on RO processing and flavor, and the appearance of new RO technology that could concentrate to higher levels, a shift toward this new technology seemed appropriate. Therefore after investigating various options, we entered into a partnership with Lapierre Equipment to utilize the new HyperBrix RO system at UVM PMRC. This paper describes some aspects of our first two seasons of use of this equipment. Given the state of the industry, we define Òhigh brixÓ maple sap processing as RO machines capable of producing concentrate at 30¡Brix or higher.
The most helpful advice for producers concerned about damaging otherwise good syrup is the most basic; make sure to grade each batch carefully and don’t assume that just because everything went smoothly in the sugarhouse that the syrup doesn’t need to be checked. The following is a list of problems that can occur with the four primary qualities of syrup, and how to avoid them.
No two sugarmakers follow the exact same path. For some, their business grows slowly, one weekend farmers market at a time, and they prefer to stay small. Others build their backyard operations into wholesale businesses that keep them busy year-round. Some enjoy selling directly to their customers. And others would rather focus on production, and let established retailers take care of the rest. These snapshots of four sugaring enterprises illustrate just a few of those successful models.
In general, it is presumed that any effect of Òspout colorÓ on sap yield arises due to thermal warming of darker-colored spouts during sunny periods. Darker-colored spouts warm faster and the spout temperature can rise considerably above air temperature when hit by the sun compared to lighter-colored spouts. To assess the effect of Òspout colorÓ on sap yield, we conducted a multi-year study at the University of Vermont Proctor Maple Research Center in Underhill, Vermont. Twelve treatment plots were randomly assigned a different spout type, with one mainline and releaser for each plot.