CHOMETZ may be purchased immediately after Pesach at the following stores in the Detroit area, except for Dunkin Donuts (10 & Greenfield) where chometz should not be bought until 10:10 PM, due to the Halachic requirement of “bichdei sh’yaasu”.
It is advisable to wait two weeks after Pesach (April 28) before buying “pure” chometz products (e.g., bread, grain cereals, pasta, cookies and pretzels) at Jewish-owned stores that do not observe Pesach, even if they made a Mechiras Chometz before Pesach, due to the possibility that new chometz was received during Pesach. This includes Restaurant Depot and Natural Food Patch. It is permitted to purchase most other products immediately after Pesach, including pearled raw barley, dry cake mixes, flour (without malted barley), glue, all kitniyos, ketchup, mayonnaise, medicines, mustard, vinegar, vitamin tablets, baker’s yeast, and yeast extract.