CRc:Chicago Rabbinical Council

Whole, slivered or chopped nuts are acceptable without Pesach certification whether in or out of a shell, except if they are 1) blanched or roasted (all varieties), 2) finely ground into a powder, such as almond flour, 3) contain BHT or BHA, 4) shelled pecans (all varieties), or 5) peanuts (which are kitniyos). ................
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