If you're pickling things and are storing them long-term, you absolutely should not re-use jars and lids from store-bought products. Canning lids are not re-usa

If you're pickling things and are storing them long-term, you absolutely should not re-use jars and lids from store-bought products. Canning lids are not re-usable, and you're risking your life by doing so. Use products intended for home canning, and use a new lid every single time!