It looked like the problem was solved. Miche Genest did some experimenting and was able to produce homemade vinegar. Unfortunately, Suzanne has not had the same success. Her first batch of vinegar was a dismal failure. It was not sour, and not drinkable — she’s still not sure what she’s going to do with it. She has another batch on the go, but is losing confidence in her fermenting abilities.
Hope remains, however, for some other possible sources. Suzanne also has an attempt at apple cider vinegar fermenting on the go thanks to some of John Lenart’s culled apples (small, sour and green) that he saved for her. And, of course, the birch sap vinegar experiment is also doing its thing until Fall.
But Suzanne needs a vinegar substitute now (in order to make ketchup, string cheese, mayonnaise, etc.) So it was perfect timing for an inspired idea by Jen Sadlier of the Klondike Valley Creamery — rhubarb juice.
One bite of raw rhubarb and you know how sour it is. Rhubarb apparently contains malic acid, which is the ingredient used commercially in flavouring salt-and-vinegar chips.
Suzanne tested the juice with pH strips and it is almost as acidic as white vinegar (pH 3). This makes it a great substitute for vinegar or lemon juice.
Unfortunately, rhubarb is not easy to juice. The best way is to freeze it first and then let it thaw before putting it through a juicer or blender, and then squeezing out the juice.
So far, things are looking promising. Suzanne has successfully made string cheese and hollandaise and ketchup with it. Next, she is going to use the juice to try pickling cucumbers. We will keep you posted on Suzanne’s progress.