It is good policy to give non perishable food, and assume that the Shelach Monos packages won’t necessarily be emptied nor refrigerated by the recipients in a timely fashion, espcially if giving to the local Rabbi who is probably smothered with Shelach Monos. …. It is also means the giver can already pack a few days before Purim, without worrying about perishing food.
Often a good idea to give Kosher Al Pesach food. …. When we consolidate our Shelach Monos after Purim:- 1st order of business: Segregate Kosher Al Pesach items from Chometz items.