How to use a Pressure Canner

how to use a pressure cannera

With so many people gardening and wanting to preserve their own food these days, we are taking back what was once a lost art…the art of canning.

Learning how to use a pressure canner is easy, once you know some basics. I remember that I was once afraid to use it, due to the “horror” stories of the warning labels on the canner. It could scald you, it could release pressure too fast and hurt you….and on and on. But, once you get started, you’ll find that pressure canning is the easiest thing to do. AND, for veggies like corn, green beans, potatoes, and peas, it’s the ONLY safe way to can your garden harvest. Let’s get started with some basics, shall we?

Before you begin pressure canning, I always recommend that you read or re-read your manual. It’s amazing how much we think we remember, but when we go back new things can be revealed. Some other key points to remember are:

Always work with clean hands, clean surfaces and equipment.

Wash out your pressure canner, especially if it’s the first time in use ever, or it has been sitting for more than a week or so. That will get rid of the dust, and any leftover oils or food and keep it from contaminating your new harvest.

Your knives and cutting board should be sanitized with vinegar and water before you begin.

This will minimize any cross contamination and introduction of nasty germs in the food. You don’t want to have those hanging around in your jarred food for 6 months before you eat them.

Knives should be very sharp to minimize slippage when cutting meats.

Work with one kind of food at a time, and thoroughly clean all your equipment before beginning the next type.
how to use your pressure canner safely and avoid a shocked jar
Your jars should be clean, and should be sanitized in hot boiling water and held in boiling water until use. This will keep the jar from being “shocked” when you put it in the canner, and will help minimize bacteria from entering your food. A shocked jar is caused by a cold jar being filled with hot food and placed in hot water. This will lead to breakage.

You can wash them in the dishwasher, put the “dry” cycle on, and leave them in there while you work as well. Just make sure they stay hot. If they cool off before you can use them, the best thing is to run a rinse and dry cycle again.

Your lids should be washed, and held in simmering water.

This will soften the seal and help prevent seal failures. Bands should be washed, and can be left on a clean towel until use. You can alternately keep them in the simmering water, if you wish but it’s generally not necessary. Always use a non-metallic instrument, such as a rubber spatula, to remove all air bubbles from the food and jar. Always let the pressure canner vent steam for a full 10 minutes. This will help increase the pressure faster.vent the steam in a pressure canner

Always let the canner cool on it’s own accord, and then remove jars.

When the jars are cool, usually after 24 hours, test seals by gently pressing on them. A properly sealed lid shouldn’t give at all, or “pop” when you press on it. Any that haven’t sealed in this time should be refrigerated and used within a week. Jars that have sealed should be wiped off with hot, soapy water to remove any residue and stored in a cool dry place for up to a year.
how to use your pressure canner

When pressure canning, there are two types of techniques used, raw pack and hot pack.

They are just what they sound like; raw pack is when you put the food in the jar raw and cover with boiling liquid, and hot pack is when you partially cook the food before you pack it in the jar and cover with boiling liquid. The main advantage I have found with using the raw pack method is that it takes less time. You clean your food, cut into the right sized pieces, pack in, and cover with boiling liquid. White potatoes are the only vegetable that I have canned that cannot be raw packed.

You will hear the term “headspace” quite often, and wonder what that is.

/strong> That is the air space left between the food and the lid of the jar. The screw rings on the top of the jar are pretty good eyeing indicators. The bottom one is an inch from the top, the middle ½ inch, and the top ¼ inch.

To raw pack veggies, simply place prepared veggies into a hot, clean, canning jar and cover with boiling water.

Most veggies require 1 inch of headspace and pressure canning at 10 lbs pressure. Your elevation level may change this. Please refer to the users manual for specific instructions on this. [sc name=”Canning” ]

how to use a pressure cannera

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24 thoughts on “How to use a Pressure Canner”

  1. I am happy to see this post! I have an old pressure canner that a relative gave me and have been wanting to get the dust off and try it out. I have always canned with a water bath. Thanks for posting!

  2. Thank you for empowering all people everywhere to not be terrified of their pressure canners! I was wary of using mine for a long time. You know that scene in Holiday Inn when the peach jam explodes – yeah, that’s what I kept picturing. Hilarious since you waterbath jam, but whatever.

  3. Kathy @

    Thanks for the post!! I have been using a pressure canner for years with no problems. I’m glad to see a post like this that explains everything for people.

  4. Thanks for the instructional about using a pressure canner. I admit that I know nothing about this subject, although I would really love to make my own preserves.

  5. I never knew these existed! I just made my first batch of refrigerator pickles today actually but would love to get into canning. Thank you

  6. Colette @JamericanSpice

    My friend does this canning, but I’ve not had the pleasure. I would love to do it sometime.
    Thank you for sharing this information.

  7. Thank You So Much For Writing This I Have Been Wondering How To Do This For About A Year Now But Haven’t Had Time I Think I May Have To Try This Sooner Than Later!!! Thank You!

    1. Amanda, I go to thrift stores, garage and estate sales, and ask from neighbors and friends….it’s amazing how many give away their jars!

  8. Lavonnia AllisonBurres

    I’ve wanted to know this for ages! I use to help my grandmother with canning, but when it came to that part, she never would let me. Thank you for sharing this!

  9. I do some canning. But have never done anything like this! Pressure canner sounds like a great idea. I will look forward to your posts on recipes and food preservation that can be done with pressure canning 🙂

  10. We have a pressure cooker at home. But I’m afraid to use it and we don’t use it frequently too. Your tips will be helpful so the next time I’ll use, I will not be that afraid.

    1. for canning? Unless it was specifically stated it could be used for that purpose, I wouldn’t. The ones I have seen are only cookers, not canners.

  11. trish @

    Fantastic tutorial! Thanks for sharing it with the Home Matters Party. Join us again next Friday!

  12. Betsy @

    Thanks for explaining how to pressure can! I have done some canning, but only water bath, and pressure canning seems like a quicker and easier option.

    Thanks for sharing at #SmallVictoriesSundayLinkup …I’ve pinned this post and also featured it for our upcoming week… hope you stop by again to link up!

  13. My only memory of pressure canning was the rattle of the thingy on top and the one that blew up and we had stuff on the kitchen ceiling.

  14. Thank you for posting this valuable information on pressure canning.
    My Mom had one and used it all the time growing up but I never learned. This summer I will though! Thanks again! Very helpful!

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