How the starting amount is calculated
One appliance-size panel is defined here as no more than 8 square feet. For each panel, the tool starts with 1 tablespoon cool water and 1 tablespoon white vinegar at about 5% acidity. If—and only if—the manufacturer permits an oil polish, the separate optional step allows no more than 4 drops of olive oil or food-grade mineral oil.
Selecting two panels simply doubles those starting quantities; selecting three triples them. The tool rounds the panel count to a whole number from one through four. The 8-square-foot assumption is a planning convention, not a laboratory-tested coverage or efficacy rate. Start with less, avoid saturating the cloth, and prepare more only if needed.
What the calculator intentionally does not estimate
- Soil level: a dropdown cannot reliably measure the residue on a real appliance.
- Cloth count: begin with three clean cloths and replace any cloth that becomes dirty.
- Buffing time: stop when the optional film is removed and the surface feels dry, not after an invented timer.
- Compatibility: the manufacturer label and a hidden-area test decide whether the method is appropriate.
- Sanitizing or disinfecting: this tool makes no antimicrobial claim.
Why nearby materials matter
An appliance panel can sit directly beside a stone counter, painted trim, rubber seal, or electronic control. Protect those materials rather than assuming a cleaner suitable for one part is suitable for all of them. The Natural Stone Institute says calcium-carbonate stone is acid-sensitive, recommends mild non-acidic cleaners, and advises against acidic cleaners on other natural stone.
Source checked July 18, 2026: Natural Stone Institute care guidance. This page does not claim product testing, manufacturer approval, or qualified materials review.