Cloudiness’ effect on refractometer measurements
Accurately measuring density is critical to the production of pure maple syrup. This article explores how impurities in syrup can affect the accuracy of tools used to measure density.
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Cold-season patterns of reserve and soluble carbohydrates in sugar maple and ice-damaged trees of two age classes following drought
This study examines the effects of summer drought on the composition and profiles of cold-season reserve and soluble carbohydrates in sugar maple (Acer saccharum Marsh.) trees (50-100 years old or-200 years old) in which the crowns were nondamaged or damaged by the 1998 ice storm. The overall cold season reserve carbohydrate profiles in twig wood tissue of drought-stressed (DS) trees and non-drought-stressed (NDS) trees were generally similar, although differences were observed in the amount of reserve carbohydrates in DS and NDS trees. The cold-season level of starch stored in DS trees in early autumn in the wood tissue was about one-third to one-fifth that in NDS trees. The cold season sugar content in the DS trees was significantly greater than can be attributed to degradation of stored starch, only.
Collect More Sap Without Vacuum Pumps
Using 3/16″ tubing can create non-mechanical vacuum that can increase sap yield.
Collection Equipment Cleanup
Best practices for cleaning tubing in Canada.
Colour Classes of Maple Syrup (Canada)
Maple syrup that is graded Canada Grade A and is sent or conveyed from one province to another or exported, or that is graded Grade A and is imported, must be labelled with any applicable colour class that is set out in Volume 7 of the Canadian Grade Compendium [325, SFCR].
Comparing Some Key Attributes of Sugar Maple (Acer Saccharum Marsh) and Black Maple ( Acer Nigrum Michx)
The purpose of this article is to shed some light on important and often observed differences between Sugar Maple and Black Maple, and to discuss the comparative sweetness of their sap.
Comparison of 3/16″ and 5/16″ tubing sanitation
Although rapidly adopted by many maple producers, due to the relatively short time period in which it has been in widespread use, there is far less understanding of sanitation in 3/16Ó tubing systems. To address this knowledge deficit, we conducted a multi-year study at the UVM Proctor Maple Research Center to examine sanitation related losses in 3/16Ó tubing systems to determine which approach(es) might best mitigate sap losses due to sanitation.
Comparison of Alternative Sap Ladders Applied Research in Ontario
Sap ladders have been developed by maple producers in response to the challenge of transferring sap over gradients in sugar bushes. The main objectives of the present study are to learn more about sap ladders so that recommendations can be made regarding their comparative effectiveness.
Comparison of Digital Refractometers for Use by Maple Producers
The purpose of the present experiment was to test the precision of a variety of digital refractometers available to maple producers. Additionally, the effect of temperature on refractometer accuracy and precision was investigated, in order to assess the reliability of the automatic temperature compensation feature now present in the majority of refractometers.
Comparison of the “Small” Spout with the Traditional 7/16″ Spout
The “small” spout, 19/64″ or 5/16″ in diameter, has been widely available to maple producers since the mid to late 1990’s as a “healthy” alternative to the traditional 7/16″ spout. While now in general use by producers in some regions, particularly those collecting sap by vacuum, the utility of these smaller spouts is still questioned by many sugarmakers, particularly those collecting sap by gravity. This article will review several studies conducted at the University of Vermont Proctor Maple Research Center comparing 7/16″ spouts with small spouts (for the purposes of this article, 5/16″, and 19/64″ will be considered equally as “small” spouts).