i recently came into a bunch of jars from a closing organic food and garden business. I bought the (1-4 quart) jars for $1 each. Some jars were spices, some cedar chips and some potpourri ingredients. I am not sure if the spices or other food items are safe for human consumption, so will likely use them for spider and bug spray. Also, I like to use my old stale spices in my smoker. One 1/2 gallon jar is chock full of oat bran. Anyone ever try using oat bran in a smoker?