Using vinegar to clean a hardwood floor may damage its polyurethane, wax, or other finish.
Test vinegar on a small, less visible area of a hardwood floor before using it extensively.
Consult the manufacturer's instructions. Vinegar may void a floor's warranty.
Vinegar and stone counters don't mix. Porous stones like granite and marble are polished and sealed to protect their natural pits, pores, and fissures as countertops.
According to In the Wash, vinegar causes sealant to degrade. According to Consumer Reports, acetic acid can etch and dull a stone countertop
By corroding the counter, vinegar makes it cloudy and rough.