Yes, we recommend rinsing your water chestnuts under cool, running water. Cleaning canned water chestnuts beforehand helps remove some of the “canned tin” taste from the vegetables, so that this doesn't affect the flavor of your bacon-wrapped water chestnuts. After rinsing, you can also try soaking the water chestnuts in fresh water with a teaspoon of baking soda for 10 minutes before wrapping with bacon.