OK, stupid question- does roasting peppers and storing them in oil really keep them? My SO also buys a ton of roasted peppers for our pizzas (along with the canned tomatoes- we both like that better than traditional pizza sauce). It would be nice to save some money there.
. I keep dried herbs and spices in them; or sometimes I might just have a small quantity of something dehydrated that needs a jar. Sometimes I make up a particular spice mix for a recipe, and have too much; that goes in a little jar to be used later. If you decide to go against recommendations, and use wax to cover your jelly jars, then it doesn't matter what jar you use. Slightly larger jars can be used as mini greenhouses over seedlings. Jars are endlessly useful.