You can read my latest maple history contribution to the March 2025 edition of the Maple Syrup Digest newsletter at this link or by clicking on the image of the article. The Maple Syrup Digest, it is the official quarterly publication of the North American Maple Syrup Council.
This article takes a detailed look at the people and events that came together in the 1960s and 1970s to apply the new technology of reverse osmosis to the processing and concentration of maple sap. Today, reverse osmosis technology is a standard tool in all sizes of maple operations, yet the story of its origins and introduction is less well understood. This article covers the first two decades of the evolution of reverse osmosis for maple syrup, from an experimental concept to functional designs, commercial production, and industry adoption.
You can read the article at this link or by clinking on the accompanying image.