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I usually wash my rice in the pot that comes with my rice cooker (Tiger JBV-10CU) which is non-stick. I've heard that rice can be abrasive to the non-stick coating if you move it around in the pot as your washing it. Is there any evidence that supports this claim?

AlphaFoxtrot
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    I [tried](https://physics.stackexchange.com/questions/767881/can-the-scratch-susceptibility-of-a-given-material-be-determined-given-the-brea/767893#767893) – Arctiic Jun 17 '23 at 03:08

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No, there is not.

Nonstick coatings, while softer than steel, are considerably harder than rice grains.

FuzzyChef
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  • Rice can have harder minerals and dirt/sand that can scratch, best to rinse it first... – dandavis Jun 21 '23 at 20:35
  • Sure, if your rice had a bunch of sand/rocks in it, then that would scratch the pot. But, if your rice has rocks and sand, then rinsing it in a pot isn't adequate, and you'd know that pretty quick if you tried to eat it. – FuzzyChef Jun 21 '23 at 21:32