Q. What are the concerns with using rinse aids in automated commercial washers with wine glasses? I have heard not to do it, but want spot free glassware and absolutely no interference with wine tasting (of course).
A. Rinse aids work by placing rinse aid residue on the surface of glasses and smallware being cleaned. The residue in the rinse aids left on surfaces are hydrophobic molecules, which stick to the surface to repel water. Less water on the surface, means less water that needs to be dried, and that leaves less water available to make streaks and water spots. But there’s a problem…
Rinse aid residues interfere with food and drink sensory experiences, i.e. it interferes with wine tasting among other related tastes, flavors, scents, etc.. This is especially problematic for fine wines. In fact, there are three primary ways rinse aids impact the wine tasting experience:
To avoid these problems, do not use hydrophobic rinse aids. To get water spots and streaks off glassware, use an odor-free, absorbent cloth to wipe down the stemware immediately upon finishing a short drying cycle. For washer and commercial needs, change the rinse aid to a citric acid rinse, like Citrajet® Low-Foam Liquid Acid Cleaner/Rinse. It reduces the concentration of calcium, magnesium and iron in rinse water (the source of water spots). Citrajet detergent does not contain any hydrophobic ingredients that stick to glass, so none of the above-mentioned problems will occur. It is completely free-rinsing.
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