History of Maple Sap Evaporators

The First Maple Syrup Production

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Sap being boiled in a log
  • Logs were filled with sap and then hot stones were added to boil the sap.
  • Hot stones would continue to be added until there was a large enough quantity of syrup produced.
  • Myths suggest that eastern woodland Indians such as the Iroquois began boiling sap that the Creator had provided for them.
  • In 1775 a young colonist was captured and witnessed the Indians boiling what is now know as maple syrup.

History of The Evaporator

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Settlers pouring sap collected in buckets into a kettle
  • —Written accounts of sugaring date back to 1557, the exact origins are unknown.
  • —Multiple kettles were adopted to decrease the boiling time as well as the quality of syrup.
  • —What is known is that maple syrup production began officially in the 1700’s.
  • —In 1858 D.M Cook patented the first evaporator pan
  • —In 1864 David Ingalls patented a evaporator pan with baffles in the bottom to help channel the boiling sap.
  • —In 1872 H. Allen Soule or Vermont designs the first evaporator with two pans and a metal arch or firebox further decreasing boiling time.
  • —Europeans introduced metal kettles which became common place and decreased boil time.
  • —Written accounts of sugaring date back to 1557, the exact origins are unknown.

First Maple Production Innovations

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  • Flat bottom pans was one of the first major innovations to boiling sap.
  • Increased surface area allowed for unprecedented evaporation speeds.
  • The flat bottoms pans were also enclosed and helped keep out wood ash.
  • Both increased fuel and boiling efficiency.

Modern Evaporators Today

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A modern evaporator boiling sap
  • Incorporation of deep channels or “flues” to again help decrease boiling time.
  • Enclosed heat source underneath the pans doubled the efficiency of fuel and heating times.
  • Reduced fuel and time also decreased production cost and thus decreased syrup prices.
  • Wood is still being used however, alternative fuel sources are used such as: Fuel oil, kerosene, propane, and natural gas.

(Sources) : NORTH AMERICAN MAPLE SYRUP PRODUCERS MANUAL, Maple History Timeline

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