It crystallizes out as a hard crust in the barrels. It is found on the insides of the wine barrels and sometimes at the bottom of bottles of wine. Grapes are the only significant natural source of tartaric acid, and cream of tartar is obtained from sediment produced in the process of aging wine. It is obtained when tartaric acid is half neutralized with potassium hydroxide, transforming it into a salt.
As my husband and I have a vineyard and make wine, I see no reason that you can not keep it indefinitely.Ĭream of tartar is the common name for potassium hydrogen tartrate and also tartaric acid, an acid salt that has a number of uses in cooking. Shelf Life of Cream of Tartar – From everything I have read and seen in our winery, it has an indefinite shelf life if kept tightly closed and stored away from heat. (2) If you do not have cream of tartar, is there a substitute? I am baking Snickerdoodle cookies. (1) Does cream of tartar go stale or lose it’s effectiveness with age?
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