I imagine the problem is twofold: Firstly, other than water we are choshesh that chometz happens faster. Secondly, in your example the crumbs would be all over infecting the keilim.
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I imagine the problem is twofold: Firstly, other than water we are choshesh that chometz happens faster. Secondly, in your example the crumbs would be all over infecting the keilim.