Cream of tartar is used primarily in cooking, though it is also used as a cleaning agent by mixing it together with white vinegar and rubbing the paste onto hard water deposits and soap scum. Here are some of the culinary uses of cream of tartar:
- Added to whipped cream after it has been whipped to stabilize it.
- Added to egg whites when whipping them to increase their volume and help them maintain peaks at higher temperatures.
- Added when boiling vegetables to reduce discoloration.
- One of the key ingredients in some formulations of baking powder where it reacts with baking soda and an acid to produce carbon dioxide to promote rising of baked goods.
- Found with potassium chloride in sodium-free salt substitutes.
- Used to make icing for gingerbread houses and for another frosting, where it acts to prevent sugar from re-bonding and crystallizing.
- Used to clean copper cookware and fixtures.