I also use mason jars. They have lids that are airtight. Great for curing and storage. The wide mouth variety are the best, I think. Just my thoughts. Take care and be safe.
I found these tupperware containers at big lots the other day that have a rubber seal and a latch on each side for about a buck a piece. Airtight. You can hear the air whoosh out when you seal it. Very nice.