Asian Recipes

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How does soap help clean a dirty dish?

Soap (and detergent) reduces the relatively high surface tension of water and so enables the water molecules to penetrate better the pores of the food residue clinging to the dish. Unless that happens, some of the food particles - although surrounded by a sinkful of water - can remain dry, hard and difficult to remove.

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07:16:30 on 12/12/07 by Webmaster - Questions and Answers -