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Ethanol and isopropyl alcohol have also been found to be very effective sanitizers. The downside to these sanitizers is that they are flammable and are very volatile, evaporating quickly after use. One experiment by [http://masterbrewerspodcast.com/096-efficacy-of-sanitizers-in-the-brewery Elliot Parcells & Josh Pohlmann from Bells Brewery] claimed that iodophor was an ineffective sanitizer at concentrations of 25 ppm, however, their results have been questioned due to their methodology <ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/2172245389470330/?comment_id=2172685769426292&comment_tracking=%7B%22tn%22%3A%22R%22%7D Dr. Bryan Heit. Milk The Funk Facebook thread on an MBAA podcast about the efficacy of iodophor as a sanitizer. 07/10/2018.]</ref>.
Sulfur dioxide has been used as a sanitizer in some cases in winemaking; see [https://www.facebook.com/groups/MilkTheFunk/permalink/2202288736465995/ this MTF thread] for more information. SO<sub>2</sub> is also used as a microbial stabilizer in finished wine. 50 ppm of total SO<sub>2</sub> can inhibit the growth of lactic acid bacteria in finished wine <ref>[https://psuwineandgrapes.wordpress.com/2018/10/26/understanding-difficult-malolactic-fermentations/ Dr. Molly Kelly. "Understanding Difficult Malolactic Fermentations". Wine & Grapes U. 10/26/2018. Retrieved 11/22/2018.]</ref>. 2.1 mg/L of molecular SO<sub>2</sub> is needed to inhibit ''Brettanomyces' in finished wine <ref name="Agnolucci_2017">[https://link.springer.com/article/10.1007/s11274-017-2345-z Brettanomyces bruxellensis yeasts: impact on wine and winemaking. Monica Agnolucci, Antonio Tirelli, Luca Cocolin, Annita Toffanin. 2017.]</ref>. See [https://grapesandwine.cals.cornell.edu/newsletters/appellation-cornell/2012-newsletters/issue-12/article-contains-sulfites/ this article from Cornell] on an explanation between total SO<sub>2</sub>, free SO<sub>2</sub>, and bound SO<sub>2</sub>.
Caustic cleaners can errode glass when the pH gets above 9.0 <ref>[http://www.vitroglazings.com/VitroGlazings/media/sitedocuments/TDs/19_TD105F.pdf "How to Prevent Glass Corrosion". Paul F. Duffer. Glass Digest, November 15, 1986.]</ref><ref>[https://www.facebook.com/groups/MilkTheFunk/permalink/2223548741006661/?comment_id=2223604231001112&reply_comment_id=2224717294223139&comment_tracking=%7B%22tn%22%3A%22R%22%7D Shawn Savuto. Milk The Funk Facebook group post on caustic erroding glass. 08/12/2018.]</ref>.