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If a piece of a biblically forbidden food (such as a piece of pork), falls into a bowl of meat. We all know the rule, it's batul bshishim. How about a piece of food which is only rabbinically prohibited (a food that contains דברים מעמידים such as cheese). If the cheese would fall into a bowl of other cheeses, would the same laws of bitul apply regarding the shishim part. Or would we be even more meikel, because the food itself is only rabbinic?

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Is the bowl hot? Is the rabbinic prohibition עיקרה מן התורה? – Double AA May 29 '14 at 3:59
I don't understand your case. Is this Lach beLach on Min beMino or is it Yavesh beYavesh on Min besheEino Mino? – Double AA May 29 '14 at 4:46

Assuming I understand your question correctly, batel b'shishim applies to both rabbinically and torah prohibited foods. It's basically the ratio at which chazal felt a tiny quantity of food became relevant.

However keep in mind it only applies to food when you can't separate the two foods. If a piece of non-kosher cheese fell into a bowl full of pieces of cheese, I see no reason why you wouldn't just pick it out.

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If they are all the same color. Then you wouldn't be able to tell them apart – David Feigen Jun 15 '14 at 7:51
That would be an issue of Rov, not batel b'shishim. – Bachrach44 Jun 21 '14 at 21:44
Well if the issue is rov then the cheeses are forsure kosher because rov of the cheese is kosher. – David Feigen Jun 22 '14 at 9:36

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