This tool makes bottle rinsing and sanitizing a pleasure! Just fill the bowl with a solution of sodium metabisulfite (see “chemicals” section) and then rinse bottles by placing on the plunger in the middle of the bowl. 3 or 4 quick pumps and the bottle is simultaneously cleaned AND sanitized, ready for filling with wine! It doesn’t get any easier. Just hang bottles on the bottle drainer detailed above, and when you’ve rinsed all of ’em, start bottling.