The Care and Feeding of Pressure Canners

Care and Feeding of Pressure Canners | Backdoor Survival

A pressure canner can be a prepper’s best friend, especially if there is access to home grown fruits and veggies, or a local farm community that will sell you “less than pretty” items for a song.  On the other hand, mention the phrase “pressure canning” to someone who has never canned  and they will start to shake and shiver with fear.

I know, because I did.  The reality however, is that canning using modern methods is very safe. With a modicum of diligence, there is no need to be afraid and a lot to be gained in the process.  Heck, my good friend Daisy Luther is a canning maniac and cans for relaxation. She even wrote a book about it.

Care and Feeding of Pressure Canners | Backdoor Survival

Because canning is important and because canning equipment is expensive, it pays to keep your canner in good shape.  I know there are those of you that are using canners that were handed down by your mothers so you are the experts at the care and feeding of pressure canners.  You are doing everything right.

And the rest of you?  I hope that you will be able to pass your canner on to future generations.  Keeping it in good repair is the first step and to help us along, I have called upon Susan Gregersen, a popular author in her own right.  She has written an article on the maintenance and storage of pressure canners, and, with her permission, I am sharing it with you today.

Maintenance and Storage of Pressure Canners

I wish I had a picture of the safety overpressure plug that I threw away several years ago, from one of my pressure canners.  I was naïve and didn’t realize these things needed replacing from time to time.  I’d use my pressure canners and when I was done for the season, I’d wash them well and store them in a shed where I kept cases of empty jars and extra rings and such.

This particular safety plug was literally crumbling.  The rubber was aged and eaten away from it’s edges.  I’d started a load of jars through the canner and air kept escaping around the plug.  I tried (foolishly) to pack a towel over it and weight it down, but it just soaked the towel with steam.  I shut the canner off and let it cool down, then finished my canning with my other canner.

Next time we were in town I stopped at the Hardware store and showed them my plug.  They sold me a box with half a dozen plugs in it for a few dollars.

The years passed and then one of my canners started leaking around the seal.  I tried holding the handles down tight, to stop the escape of steam.  It worked sometimes.  While I held it down tight the pressure would build and then the canner sealed and I was able to continue that load of jars.

I tried oiling the seals to buy time.  These are the old seals made of rubber.  Oiling did work…for a while.  Then the seals were so stretched it was hard to keep them in the lid as I put it on the canner.  sometimes it took a few tries to get the lid on with the seal in place.  That was stupid.  I should have gone straight to the hardware store and bought new seals.

Even though it seems like the canner is up to pressure and the weight eventually jiggles and everything seems to be going right, it’s possible those old seals or plugs are not really letting the canner reach it’s proper pressure, and without that, the contents of the jars may not reach a high enough temperature to safely preserve the food.

Nowadays I take that seriously.  As preppers we should always have spare parts stored away for when we need them, but for anyone who uses pressure canners (or anything else important to their survival), it’s nice to have the parts on hand when you need them!  Then you don’t have to stop in the middle of canning a batch of something to run to the store to buy what you need.

My canners are made by Mirro and have the model number stamped on the bottom.  It’s good that they do, because it’s not in the book that came with my canners.  I hunted all through the book and finally found a page with replacement part numbers.

Read more:  How to Overcome The Fear of Pressure Canning

It was buried at the end of the section in English, right before it went into other languages.  My canners are from the 1980s, before there was internet, and it assumed you would order parts directly from them.  Now a days I’m more likely to hop onto amazon and just order the parts.  Here’s a link, in case you want to check and see if they have the parts for your brand and model of canner.

They’re considerably cheaper than the hardware store, and more likely to have the part you need in stock.

Winter is a great time to look over your seals and safety plugs, and see if you need to order any replacements.  It’s a good idea to order extras to stock up and have on hand.

When my extras arrive I check to see that I have the right ones, then I put them back in their box and vacuum seal them in food saver bags to slow down oxidation.  Then, just like the food that I preserve, I store them in cool, dark places.  Heat and light can break down the material just like it does to food.

Some newer seals are made of silicone or plastic and don’t need as much care to maintain them.  The old rubber seals like my canners use can dry out and crack over time.  The old wives tale of soaking them in water isn’t really effective.  Rubber doesn’t absorb water.  If you feel the need to “soften” or preserve them, spread a thin layer of cooking oil (any type) on them.  Wipe excess oil off with a paper towel before use.

The Mirro company warned (in my instruction book from the 1980’s) not to over-do the oiling of the rubber seals, but didn’t explain why.

My standard practice for storing my canners over the winter was to put a light layer of oil on the seal and the safety plug.

I have a vacuum sealer now, but I don’t use it for this because I never know when I’ll randomly acquire something to can, or decide to do up a batch of beans (from dry) or something.  So I still just put them in a Ziploc bag.

Then I toss it inside the canner and put the lid on.  My mother always said not to store the canner with the seal in place and the lid on tight.  Again, she never said why.  My speculation would be that it might compress the seal, sitting in storage, and reduce it’s lifespan.

I store the pressure weights elsewhere, in a safe location in my kitchen.  They’re too expensive to replace.  Around ten years ago I misplaced mine and it was going to cost $30 just for that little round weight that sits on the spindle on top of the canner.  Now they’ve come down to around $20.

It’s no badge of honor to be able to brag that you got ten years out of a gasket seal for your canner, or that you’ve never had to replace the safety plug.

Canning is more than a hobby, or a necessary activity for food preservation or survival.  It’s a serious issue of safety and proper management.  Be sure to include extra parts in your storage, and store them for the longest shelf life possible.

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If you would like more from Susan, consider one of her books including this one, Poverty Prepping: How to Stock up For Tomorrow When You Can’t Afford To Eat Today.  Like Susan herself, it is full of practical, no nonsense tips for prepping on a budget.

Want to learn more about those old Mirro pressure canners?  You may find this vintage Mirro Pressure Cooker & Canners Instructions Manual & Recipe Book just what you were looking for!  It is a free download.


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The Final Word

Where do I personally weigh in on canning?  Lest I be labeled a fraud, my shiny new All-American pressure canner is still sitting in it’s box, waiting for me to find something, anything, to can.  This is definitely a case of do as I say and not as I do.

My excuse, so far, is having nothing to can.  Like I said, an excuse.  I surely am able to can some baked beans, spaghetti and meat balls, and chicken when it is on sale at 99 cent a pound.  My excuse is no excuse at all.

Canning is on my summer bucket list, without a doubt.

Enjoy your next adventure through common sense and thoughtful preparation!
Gaye

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Bargain Bin:  Below you will find links to the items related to today’s article.

Food Storage: Preserving Everything, Every Way!: Three of Susan’s most popular food preserving books have been combined in one volume! “Preserving Meat, Dairy, and Eggs”, “Preserving Fruits, Nuts, and Seeds”, and “Preserving Vegetables, Grains, and Beans” have been compiled to give you over 300 pages of information. Available in both print and eBook format.

All-American Pressure Cooker/Canner:  This is the canner I purchased for myself.  It is at the high end when it comes to canners and certainly is not the only option.  Mine is the 15.5 quart size – small.  On the other hand, it fits nicely under my range hood so I am pleased.  Other sizes are available here.

Presto 23-Quart Pressure Canner and Cooker:  This is another good option when it comes to pressure canners.  It is so popular that it is the #1 best seller on Amazon.  I initially purchased this Presto Canner but it was too tall.

Norpro 6 Piece Canning Set:  You are definitely going to want an inexpensive canning kit.  The wide neck funnel that came with this kit is used almost daily. I just checked and I can get an extra canning funnel for less than $4.  Even if you do not plan to do any canning, your will want one of these.

The Organic Canner: Some of you might remember this book from a recent book festival.  The author, Daisy Luther, is going to be my coach as I learn how to can.  How cool is that?  I just wish she were closer so my “training” could be hands on.

Ball Complete Book of Home Preserving: Many consider this Ball Canning Guide to be their canning bible.  I have the eBook version but if I really get into this, am considering the spiral bound version as well.

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The post The Care and Feeding of Pressure Canners by Gaye Levy first appeared on Backdoor Survival.

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