Did you know that stain problems like hard water mineral deposits from kitchen and bathroom fixtures and porcelain can be solved by using an ingredients commonly found on our kitchens.Yes, cream of tartar (a.k.a. Potassium bitartrate – a byproduct of the wine industry) used together with hydrogen peroxide can be an effective stain remover for any type of mineral deposit and rust on sinks or on any porcelain fixtures
The link below will teach you more about removing mineral stains by using common household ingredients like cream of tartar, vinegar, etc.
Link: How to use cream of tartar to clean mineral stains from
