To me it's more about the starch and other things they put on clothes and sheets etc to make them look nice and crisp in the shop. Usually feels a bit unpleasant on the skin so I wash them first.
I always rinse off things that won't be peeled, but I'm mostly thinking about dust that might be on the surface. If I were truly worried about surface germs I'd use a special food cleaning spray. Sometimes if an apple feels particularly waxy I will actually wash it with soap but that's rare.
I have occasionally washed citrus fruit with soap, hot water and a nailbrush when I wanted the zest and couldn't get any unwaxed ones. The wax is probably harmless but I didn't fancy eating it.
Doncaster, South Yorkshire. Soil type: sandy, well-drained
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I always rinse off things that won't be peeled, but I'm mostly thinking about dust that might be on the surface. If I were truly worried about surface germs I'd use a special food cleaning spray. Sometimes if an apple feels particularly waxy I will actually wash it with soap but that's rare.