Not only snails also spores of algae and other crap. I usually squirt a few tablespoons of hydrogen peroxide into a cup of water and dip them for 30 seconds or so. Vals half that
×Go S. Vettel #1 Infiniti Redbull! 4x WDC!!! Congrats on another flawless title and 9 wins back to back in 1 season (record!) See you next year in Australia boys!× <GET BETTER SCHUMI>
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I've also hard of people dipping them in really diluted bleach + water solution, followed by a clean water rinse as well to get rid of anything nasty...