Yes! Once fermentation is complete, you will want to start cleaning your Hydrometer and preparing it for storage. This is the exact same process that you want to use for sanitization. Remove the snout and clean the Hydrometer's blade, temperature probe, snout, air-lock adapter, and torpedo. This means removing the Hydrometer's snout, air-lock adapter and torpedo and placing them in a solution of water and star-san. Then, using either a Q-tip or paper towel, take your sanitizer solution and carefully clean the bottom area around the blade and the inside of the Hydrometer's snout.