We have left all cleaning supplies successfully over many years. We do not leave anything in cans or jars with the exception of the following. Olive oil, (and other oils), vinegars, syrup, hard liquor(not wine), soy sauce, mustard, (really anything that is salty) have done well. Flour, sugars, cereal, oatmeal, pastas, etc as well. We leave all the liquid things in large, heavy duty ziplock bags sitting in the sink in case of leakage. Dry things so well in ziplocks. So far so good!!
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