No. Peanut butter is stable at room temperature on a counter top or in a cabinet. Once opened, peanut butter will stay fresh longer in a refrigerator. Some people prefer to keep peanut butter cool, but that is only for personal preference. It is fine in or out of the fridge.
Yes
That will depend upon the peanut butter. Check the labeling. Some brands don't contain the additives and require refrigeration. Brands like Peter Pan, Jif and Skippy do not need to be refrigerated.
no you need gravy
Peanut butter is good for a very long time. It dosent even need refrigeration if kept tightly closed.
573 grams
a toaster peanut butter jelly bread and a knife
Peanut butter has a natural preservative in it. It does not need to be refrigerated. It will keep for months out of the refrigerator. How about "natural" peanut butter? I read that there is a cancer-causing mold in peanut butter, and if left un-refrigerated, can grow?
No!
Peanut butter does not need to be refrigerated, but jelly should be refrigerated after opening to maintain freshness and prevent spoilage.
Read the label. Gluten is found in wheat, rye and barley. If those are not on the label, then it is gluten free. People who need to steer clear of gluten have ciliac disease. That is a problem in your case?
Unless you are using fresh ground peanuts, most commercially processed peanut butters (Jif, Peter Pan, Skippy, etc.) will be shelf stable - even after opening. Follow label instructions for storage.
Peanut butter and jelly sandwiches do not need to be refrigerated, but it is recommended to store them in a cool place to prevent spoilage.