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How to Can Green Beans – Pressure Canning

By Annie

This post contains affiliate links. If you buy through these links, I may earn a small commission.

Once you learn how to can green beans, you’ll become more comfortable with pressure canning.

When it comes to doing any kind of pressure canning, I am very serious about the process. I don’t mean to scare you – I home can cases and cases of vegetables and we eat from our cold room all winter long.

However, pressure canning is serious business. If it isn’t done properly, the food can spoil. You can make your family very sick by eating improperly canned food.

So learn the process and then treat it like a serious process – each and every time you do home canning. Here’s some more important information about how to use a pressure canner.

I’ve had a Mirro pressure canner for more than 12 years now and just love it. When it comes to green beans, it isn’t as safe to can in a water bath canner, so a pressure canner is definitely the way to go.

How to can green beans from the garden.
Trim the ends of freshly picked beans to get them ready for canning.

Here’s an awesome harvest of 18 pounds of green beans. I’d love to say they came from my garden, but they didn’t.

I bought these from a gardening friend down the Valley. My garden is an overgrown mess of outsized beets, flowering broccoli and runaway bolting lettuces.

That’s because this year, I kept my head down and focused on the garlic weeding and harvest. Next year, I’ll be smarter and not plant such a large garden.

freshly picked greens including kale and lettuce in a basket.
A good harvest of freshly picked greens.

In the coming weeks, I’ll be harvesting and emptying the garden. There is a LOT of food that needs to be brought in.

Potatoes, carrots and beets all need to be dug. Want to read about how to store potatoes for months? Also, we have Lettuce seed that needs to be gathered so I can plant some next year.

The other day, I gathered the beans and got started. Since we are running low on canned beans, I needed to make sure I put up another good supply.

 

How to Pressure Can Green Beans

cut green beans sit on a cutting board.
Trim the ends of the beans, then slice to the size you like. Around an inch is usually good, but you can go larger or smaller.

To hot pack your green beans, cut the ends, snap the raw beans into approximately 1-inch pieces, wash them and then blanch them for a few minutes in a large stock pot with lots of water (you will need that water again when filling jars).

You can also skip the blanching step to raw pack instead–which method you use depends on your preferences.

Getting Mason Jars ready for Canning

Wash canning jars with hot water and soap and rinse them well. For the glass part of the jar, it can also be a good idea to boil water and submerge them to be sure they’re completely sterile.

I usually use pint jars because they fit in my canner, but quart jars may also be an option.

Then soak the canning seals in hot (not boiling) water for about 10 minutes to soften the rubber. Get the jar rings ready and your canning kit out.

I put 3 1/2 quarts of water into the pressure canner and then begin to fill jars with the hot beans. I add the liquid leaving a half inch leaving a half inch to 1-inch headspace for each jar.

Wiping the rim of the mason jar after filling.
Wipe the rim of the mason jar after filling.

Wipe the rim of each jar to help ensure a good seal, put the seals on, twist the rings on tight and finally set each jar in the pressure canner.

As an optional step, place a teaspoon of canning salt in each jar before adding the beans. Be sure you don’t use regular table salt, as this contains iodine that we don’t want inside our cans or jars.

My canner load is about 7 pints, but you can get taller ones so you can process 14 pints at a time.

Jars of beans sit on a counter after being pressure canned
You’ll have great quality home-grown green beans all year long with this canning method!

Just be sure to have a metal canning rack on top of the first layer of jars. You will want to keep the layers separated from each other.

You don’t want the jars in contact with each other during process time, so keep this in mind when you place your jars into the canner.

A pressure canning coming up to heat.
We like to do our canning outside if we can.

Using a Pressure Canner

Put the lid on and then place the canner on the heat. Put it on high (make sure the weight is NOT on!) and once steam starts pouring out the top, let it go for 10 minutes. Just let the steam keep coming out of the vent.

We do most of our canning outdoors on a propane burner, but you can also use your stovetop burner.

After 10 minutes, add your weight (since we are at 2850 feet elevation, I can everything with 15 pounds of pressure).

If you are below 1000 feet altitude, you will can with 10 pounds weight.

Once the weight has been added, let the pressure canner go until the first release of steam.

Once that happens, you should lower the heat under the canner, likely to between low and medium.

Also set your timer for 20 minutes for pint jars (for beans). Check the time required for each type of  vegetable or meat you want to can.

Meat is usually 90 minutes but it is very important to check the recipe.

Every once  in a while, the pressure canner will let off a big release of steam and pressure.

This is normal. Although scary. Especially when you first start canning. Don’t freak out, all will be well!

 

Opening the Pressure Canner

Once your timer goes off, turn off the heat under the pressure canner. Then…wait. Do NOT open the canner lid right away or jiggle the weight to release the pressure.

It’s important to let the canner cool down naturally. Only then, do you lift the lid.

Lift the lid AWAY from you. There will still be some steam inside the canner and you don’t want to get hit in the face with it.

Lots of jars of home canned green beans after being pressure canned.
Leave the jars alone for 24 hours after canning.

Remove the jars right away using a jar lifter and set them on a towel or blanket on your counter or wherever they can sit for 24 hours without being disturbed. At all.

Within a short time you will hear the jars pinging. This means they are sealing and that’s a good thing!

Don’t move them or shake the jars – they must be left to settle and seal on their own.

a basket full of beans and below that are jars of freshly canned beans.
This is a comprehensive guide to canning your own green beans from home!

The next day, tap the lids of each jar. You will definitely hear the difference between a sealed jar and an unsealed one. If a jar hasn’t sealed, you can either pressure can it again or just put it in the fridge.

Be sure to use it up within a few days. From the 18 pounds of fresh beans, I ended up with 33 pints of canned beans.

 

Other Home Food Preservation Instructions

  • How to Can Salmon and Other Fish – for a complete guide on pressure canned fish.
  • Make and Preserve Pickled Beets – quick and easy water bath canning method.
  • How to Make and Can Tomato Sauce – another easy to pick up water bath canning guide.
  • How to Blanch and Freeze Garden Peas – a super easy way to enjoy garden peas all winter!

    trays of blanched peas waiting to be put in freezer.
    You can preserve other vegetables too, like peas.

 

Want to find out which are The 5 Easiest Vegetables to Grow?

Available only to subscribers; join our Newsletter!

 

 

originally published 2016; updated June 2022

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