You can use canning jars to store hops, smaller amounts of grain, and other brewing ingredients and can starter wort. I seal canning jars with my FoodSaver V2244 [Review] jar sealing attachments when storing ingredients. You can also use canning jars to make starters and to can starter wort and sterile water (with the aid of a pressure cooker). Storage lids are also available.
Update: Since this post was published the price, availability or promotion has changed. Check the product page for current description, price and availability. Also: Today’s Deals on Amazon
More: Recent Amazon Finds