I have a few black walnuts at our farm, so we may try walnut syrup at some point in the future.
We do have thousands of invasive Siberian Elms at our farm. I always clear some in the winter after multiple hard freezes, yet they still run sap like a faucet.
Unfortunately, some of my neighbors call them "piss elms" - and the sap does smell like that at certain times of the year.
If someone would invent a valuable product made from Siberian Elm sap, I could retire as a multi-millionaire and just have fun improving my ponds all year!
All joking aside, what other types of trees have sap that can be rendered down to tasty syrup?
