#canning lids

Canning is a popular way to preserve fruits, vegetables, jams, and sauces at home. One common question among home preservers is whether canning lids can be reused. The short answer is: it depends on the type of lid and how it was used. Understanding which lids can be safely reused is essential to avoid food spoilage and maintain proper seals.

Types of Canning Lids

Canning lids generally fall into two categories:

Two-piece lids: These consist of a flat metal disc with a sealing compound on the rim and a separate screw-on band. This is the most common type used in home canning.

One-piece lids: Sometimes called “twist-off” lids, these are designed to seal jars without a separate band and are often used for store-bought jams and sauces.

The ability to reuse a lid depends on which type you have.

Reusing Two-Piece Lids

Flat discs (sealing lids) are designed for one-time use only. When a lid seals during canning, the sealing compound on the rim softens and adheres to the jar. Once the lid is removed, the compound may not form a reliable seal a second time. Reusing these lids can lead to weak seals, contamination, and food spoilage.

Bands, on the other hand, can be reused multiple times. They do not create the seal themselves but hold the lid in place during processing. Before reusing, inspect the bands for rust, bends, or cracks. If they are in good condition, you can reuse them indefinitely.

Reusing Twist-Off Lids

Twist-off lids, often used on commercially prepared foods, can sometimes be reused, but only for refrigerated or freezer storage, not for shelf-stable canning. Since these lids are designed for single-use sealing in factory settings, their sealing compound may fail under heat processing. If you plan to reuse twist-off lids, make sure you store foods in the fridge or freezer and consume them quickly.

Tips for Safe Lid Reuse

If you want to save money and reduce waste, here are some practical tips:

Inspect lids carefully: Check for cracks, rust, or worn sealing compound. Discard damaged lids.

Reuse bands only: Two-piece lids allow bands to be reused safely. Always pair them with a new flat lid.

Use alternative storage methods: For short-term storage, airtight containers or vacuum sealing may eliminate the need for new canning lids.

Label jars: Track which jars have been processed and which lids are reused to prevent accidental shelf-stable canning with old lids.

Conclusion

I have been searching for more lids. I don't want to resort to the red rubber rings and old "lightning jars". I've found a lot of odd ball types of jars and closures. Some I've never seen in 60 years of canning and being around canners. Its turning into a mini museum. So when I ended up at the second antique store in a week, I found these.

The rubber on the kerr are rock hard. I think the red rubber rings in the other box are usable. At this point it's just for the junk collection though. (I've thought of starting a side blog just to display all my junk)

I have canning jars in the attic, the garage and my living room. My sister is going to bring me a whole pickup load soon from cleaning out my moms.

I've canned up so much jelly and bought oddball flavors of jelly at the russian grocery market, I'll never have to make jelly again. If I get time today, I'm going to start some pickles. I bought cucumbers at the farm yesterday. With winter coming on and work slowing down, I hope to get my food storage a little more organized and do some more canning. I have also been given a pressure canner and may start doing meat.

Not everyone has noticed, but North America seems to be going through a canning lid shortage. A commodity that was worth a few dollars for a pack of  twelve a few years ago is now worth six dollars a pack on amazon and it currently being sold on primary sites for a much greater sum of money. What is going on when people need supplies?

Supply and demand are very much the deal. On one hand, restaurants and small businesses need fewer lids if they have suspended their operations. The people who want canning supplies the most appear to be prepers and online merchants who continue to have stashes of canning supplies they bought ahead of an anticipated surge of interest in canning. 

It is now a universal meme of people hoarding toilet paper. Toilet paper purchases in bulk haven’t really stopped and might pick up steam again in winter of 2020. It is a lesser known fact that people are buying lids in bulk. Why lids? The entire point of mason jars is that the jars are reusable while lids are not unless they use a rubber gasket. Some jars still use the older method of using washable and replaceable rubber seal while mason jars are meant to use a disposable metal lid.

More people are interested in canning than ever before while canning used to be a niche market. More people want lids while middlemen smell an opportunity to scalp prices. The end result is that lids might sell for twelve dollars and this should be normal by next year. Prices will eventually go down, but probably not soon enough to satisfy a sudden public itch to can.

What can be done? Surprisingly, new jars with lids and tops can still be bought for a relatively economical price. The lids are expensive. People are hoarding the lids, and the companies selling these once-only lids are also elevating prices. It is an economic windfall for a usually neglected industry. People out of the price range ought to be content with not reusing their mason jars for the time being.

There are alternatives to canning and there are alternative cans. Many foods can be dried and stored in bags or in jars without a canning. There are also European manufacturers of canning supplies who use the rubber gasket system. Their gaskets are not in outstripped demand because they are reusable. The jars themselves can still be bought for a reasonable price from the manufacturer.

Weck is one of these manufacturers and mostly sell their products in Europe. Their jars are thicker and more expensive than mason jars, but they last longer and are beautiful compared to the universal mason jar. Aside from looking old fashioned, the rubber gaskets they use are still airtight and effective. They are really designed for water bath canning but can survive a couple used in pressure canning processes.