- May 13, 2020
- Reaction score
Are you a chemist or just nerdy?Potassium is in the grapes in combined forms like potassium sulfate and potassium phosphate. The potassium ions K+ become disassociated in the wine and reattach to tartaric acid to form potassium bitartrate, which is a stable salt. The potassium combines preferentially to tartaric acid and not the malic acid, this can also imbalance the acid ratios.