Kitchen sinks which are filled up everyday with hard water mineral deposits can be cleaned with Cream of Tartar, it has been revealed.The food product can be an effective kitchen sink cleaner, the Examiner reported.Cream of Tartar is milder than acidic vinegar and can also be used on any porcelain fixtures that come on the kitchen sink, such as Perrin and Rowe porcelain kitchen taps.Soap scum found in kitchen sinks can also be removed when the food product is mixed with white vinegar and baking soda, the resource stated, which when combined, prove to be a powerful sink cleaner.To remove lime deposits on porcelain sinks, tubs and toilets, soak disposable wipes or paper towels in distilled white vinegar, the publication advised.White vinegar was recently described as an inexpensive and environmentally-friendly sink cleaner by Shirley Wilson, who, writing for the Examiner, said that because it contains no harmful toxic chemicals it can go down the kitchen sink without causing damage.