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North American Maple Syrup Producers Manual, 3rd Ed.

Since 1958 the North American Maple Syrup Producers Manual has served as a basic reference source for the production of pure maple products. This 2022 edition provides up-to-date, science-based information and recommendations relating to all aspects of the industry. The guidelines presented will help users ranging from the hobby and beginning producer level to those well-established in the industry. In addition, the information herein will benefit foresters, land managers, Extension and outreach personnel, and others aiming to provide assistance to those in the maple industry. Numerous photographs, tables, a glossary and hyperlinks to selected source materials are included.

This publication is also available in print, at www.mapleresearch.org/ordermanual.

Why and How to Check your Hydrometer’s Accuracy

Hydrometers are a critical tool for making high-quality, legal density maple syrup. A $20 to $30 investment in an accurate hydrometer can yield a valuable return in income for the producer. This article explains how to use and test a hydrometer for accuracy.

Quality control guide cards

These handy cards provide checklists for color, clarity, density, and flavor, with notes on why syrup may not measure up to standards.

Maple Syrup Density Management

Consistent, accurate measurement of maple syrup density is a challenge for many maple syrup producers. In maple sap and maple syrup, Brix may be determined using either density (hydrometer or hydrotherm) or refractometry (optical or digital refractometer). This is a guide to determining density of maple syrup.

When is it Syrup? Tools and techniques for measuring syrup density

One of the most important skills for sugarmakers to master is knowing when what’s boiling in the evaporator has become syrup. Quality control is key, and packaging syrup too dense or not dense enough will ruin the best of any sugarmaker’s efforts.

When is it Syrup? Tools and techniques for measuring syrup density

One of the most important skills for sugarmakers to master is knowing when what’s boiling in the evaporator has become syrup. This guide to mesuring density explains the tools and techniques for accurate measurement.

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.