Kitchen Tools

Specialized canning jars have tempered glass and are less likely to break. New jars have a fill line to allow for expansion. Or you can save money and use jars from food you had bought (pickles, marmalades, etc.). These jars have a unique lid, which you can’t often buy separately, so you have to use the original (already used) lids and just make sure that top of the lid has a clicking part (to confirm that the jar is properly canned).

I have no problem using the same lid even up to three times and never had a problem with the seal. I always make sure to clean the lids thoroughly before canning. Even though I am mostly reusing jars from food I bought, the decision to do so (with any possible consequences) is your responsibility and I not liable for it.