r/Canning • • May 26 '26

Announcement Why We Don't Recommend Electric Canners (Mod Post)

305 Upvotes
  1. Electric pressure canners have not been verified safely by third party testing. What has been performed is only, “We are safe because we say we are safe,” type testing. The manufacturers claim to match USDA specs but no one has verified that information externally and the manufacturers will not release their results to anyone externally. The USDA symbol used in some promotional materials is not an actual USDA seal and does not indicate USDA approval. The equipment that's been used in the past by the USDA and NCHFP to determine the thermal profile inside canners doesn't even fit inside existing electric canners on the market. A new design would be needed, and currently there is no funding for developing this equipment.
  2. The users of electric pressure canners do not have the physical signs of the device coming to pressure (like a jiggling weight or a rising analog dial to ensure that the food is processing at the correct pressure.) The user must rely on an electronic display for accuracy. Even if a type of electric canner has an analog feature, there is no way of getting the electric canner device tested or calibrated to ensure it is accurate or working correctly. (We should mention that electric WATER BATH canners are fine to use because the user can physically see the water coming to a boil.)
  3. Perhaps most importantly, all current approved pressure canning recipes rely on the heat up and cool down times relative to stove top pressure canners loaded with a minimum of two quarts of product. These heat up and cool down times are factored into the safety of all current safe recipes. Changing and/or reducing these times can affect the safety of your finished product.

Until ALL THREE of these reasons can be appropriately addressed, we as a sub do not endorse or condone the use of electric pressure canners.


r/Canning • • Oct 19 '25

Announcement Why don't we recommend pH testing for home canning? [Mod Post]

72 Upvotes

Hello Everyone!

As a mod team we've noticed a lot of questions and confusion about pH testing home canned foods recently so we're here today to give a more in depth explanation of why it's not recommended.

As I'm sure you all know, there are tons and tons of misconceptions about home canning and what we can and cannot do safely. One of the most common misconceptions is that if we pH test a food and it shows a pH below 4.6 it can be canned as a high acid food. There are two reasons why this isn't true.

  1. pH is not the only safety factor for home canning
  2. The options for pH testing at home are not necessarily the same as what's available in a lab setting.

Although pH is an important factor in home canning safely it is not the only factor. Characteristics like heat penetration, density, and homogeneity also play a role.

There are two types of pH test equipment; pH test strips and pH meters. pH test strips are not very accurate most of the time, they're just strips of paper with a chemical that changes color based on pH imbued in it. These strips expire over time and the color change is the only indicator which makes reading them rather subjective and likely inaccurate.

There are two levels of pH meters; home pH meters and laboratory grade pH meters. Home pH meters aren’t particularly expensive but they are often not accurate or precise at that price point. Laboratory grade pH meters are expensive, think hundreds to thousands of dollars for a good one. Many pH meters on sites like Amazon will claim that they are “laboratory grade” but they really aren’t. pH meters also need to be properly maintained and calibrated to ensure accuracy using calibration solutions which are also expensive. 

The bottom line is that most people do not have access to the lab grade equipment and training that would be required to make sure that something is safe so the blanket recommendation is that pH testing not be used in home canning applications.

Recipes that have undergone laboratory testing (what we generally refer to as "tested recipes" on this subreddit) have been tested to ensure that the acidity level is appropriate for the canning method listed in the recipe. pH testing does not enhance the safety of an already tested recipe.

Because pH testing is not recommended for home use we do not allow recommendations for it on our subreddit.

Sources:
https://ucanr.edu/blog/preservation-notes-san-joaquin-master-food-preservers/article/help-desk-question-home-ph

https://extension.okstate.edu/programs/oklahoma-gardening/recipes/ph-and-home-canning.html


r/Canning • • 2h ago

General Discussion Last of the home grown tomatoes picked and used

4 Upvotes

Pints of spaghetti sauce with meat added to the larder using the last of this year's home grown.


r/Canning • • 6m ago

General Discussion Finally found cheap jars!

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• Upvotes

Went thrifting on vacation and found a spot with 25 cent jars! My local thrifts price every jar at $2+ so I was thrilled and bought every Ball and Kerr jar I found 😆

Bonus set of 9 bamboo wide mouth lids for dry storage


r/Canning • • 1d ago

General Discussion Pumpkin Puree?

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303 Upvotes

Has anyone canned pumkpin puree before?

I usually get one BIG pumpkin (like this 37 pound tan cheese beauty!) then use it year round and all my recipes call for puree. But the canning recipes I'm seeing call for cubing & blanching pumpkin.

Typically, I freeze the puree but we're running out of freezer space! I would love to make use of my canning jars to create the best of both worlds.

What do you all think? Can I can pumpkin puree?


r/Canning • • 1h ago

General Discussion Sanity check please

• Upvotes

I just got a couple jars of my canned apple pie filling from the panty and one jar was no longer sealed (button popped up). I threw that one away and made the pie with some jars that were still sealed. Is the one unsealed jar indicative of a problem with the whole batch?

I'm spinning out a bit second guessing myself.


r/Canning • • 4h ago

Safe Recipe Request Qs about Bernadin Tomato Paste Recipe

1 Upvotes

Looking at the Bernadin Tomato Paste canning recipe and just wanted to confirm a couple potential changes for safety:

  1. Id imagine this is safe to scale down, maybe by 1/4 or 1/3? I do not have 16lb of tomatoes and dont need 9 jars of tomato paste besides.

  2. Does this work with non-paste tomatoes? I dont grow them, as i didnt have the plan to make tomato paste at the time I started them.

  3. Can i remove the red pepper? Can i add hot pepper? (Hot pepper in a smaller quantity, or would the recommended way to incorporate this be to subsitute it directly for red pepper?).

Or, is there a better recipe that would be better for me to follow? I saw also the recipe from National Center of Home Food Preservation University of Georgia, which has no red pepper, but I do not have citric acid.


r/Canning • • 21h ago

General Discussion Back at it. Anjou Pears in a light syrup. Waterbath

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21 Upvotes

r/Canning • • 5h ago

Pressure Canning Processing Help Replacing gasket from used presto

1 Upvotes

i just got an old used presto 21qt, I tried to sterilize for the first time today but as i was venting to start processing i saw the cover lock didnt go up at all and the pressure gauge stayed at 0 after a good 20 minutes, also some steam escaped below the lid.

I noticed my gasket is slightly loose (though in good condition maybe thats normal?) i looked on the presto site to change it but i cant find my model.

So my question Is, Is there any possibile issues other than the gasket? And if not, do i need to get the new gasket strictly for my model or are they interchangeable?

Sorry for the dumb questions but as i said i literally just started, probably buying used wasnt the smartest idea but i didnt think it'd be such a hassle to fix minor issues


r/Canning • • 1d ago

Recipe Included Super proud of my Sweet Pineapple Chili Sauce and my Zesty Peach BBQ Sauce I managed yesterday!

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79 Upvotes

I followed the Ball recipes but the sizing of the peppers for the chili sauce seems to (of course) be variable, and it’s a tad on the spicy side. I worried it was too much, but the color matches the picture perfectly, so I’m going to go with it!

https://www.ballmasonjars.com/blog?cid=zesty-peach-barbecue-sauce

https://www.ballmasonjars.com/blog?cid=Sweet-Pineapple-Chili-Sauce


r/Canning • • 23h ago

Safe Recipe Request It’s cranberry season! We have them fresh for little while but not forever!

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15 Upvotes

I want all the cranberry recipes compiled here! These are the ones I’m bringing to the table: these are in the ball blue book guide to preserving!

I plan on making cranberry ketchup!

Link, text, or pics of more welcome! Of course if the recipe is not free you don’t have to include the actual ingredients - just the name of the recipe and where to find it will do!


r/Canning • • 1d ago

Safe Recipe Request Cranberry pie filling?

3 Upvotes

I would like to make some cranberry pie filling and can it. I LOVE cranberries, and I might make pie, or use it as a compote on my pancakes/French toast, put it on vanilla ice cream or on some pound cake, or just eat it with a spoon.

I'm not finding any tested recipes for such a thing. Would i be able to use a tested strawberry or blackberry pie filling recipe, and substitute cranberries for the blackberry/strawberry? (I have found recipes for strawberry and blackberry pie fillings on sites deemed safe by the experts here.) Would that make a safe, shelf stable pie filling for me to enjoy cranberries year round? Cranberries are pretty acidic, I'm hopeful this would be a safe substitute.

Thank you for any guidance you guys can give me!


r/Canning • • 1d ago

General Discussion Eggplant recipes ???

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12 Upvotes

I've already done the caponata from Ball... My family hated it. (Too tangy).

Anyone have a good rec for recipes for eggplant?? (Yeah I know it isn't acidic enough to go by itself which is exactly why I'm asking for a safe recipe)


r/Canning • • 20h ago

General Discussion Canning fresh tuna

0 Upvotes

Looking for a safe recipe (new to canning) for canning fresh tuna with olive oil.

Is there such a thing, please?


r/Canning • • 1d ago

Safe Recipe Request Cranberry Apple Sauce

3 Upvotes

Looking for a cranberry apple sauce recipe. It seems like it should be fine, but i can't find a tested recipe. Has anyone seen one? Thanks


r/Canning • • 23h ago

Pressure Canning Processing Help I canned my beans for the wrong amount of time

1 Upvotes

I’m canning beans today and for some reason thought I only needed to can them for 40 min. I realize now that it’s actually 75min for pints. They sealed and they are still hot on the counter — can I put them back in the canner as is? Or do I need to pop the seals before I totally reprocess them for the correct amount of time?


r/Canning • • 20h ago

Waterbath Canning Processing Help Am I cooked

0 Upvotes

I tried multitasking and rushing to get ready for to a wedding while I canned apple butter, and i think i messed up the process…like royally. Before starting I sanitized everything, and wiped the rims. Several of my jars tipped over in water bath canning while I was putting them in (I did fix them immediately) and honestly I cant even remember ever putting the ring on (I mean I must have, otherwise they would’ve spilled everywhere - right??), but if i did, i took it off immediately after processing. I also left the jars yo process for 5-10 minutes longer than the recommended time. I did have a little siphoning.

I’ve never been good at the tapping sound test. Two of my jars sounded a bit different than the others, but one of them I opened, and it gave resistance and sounded like a seal opening. I canned them a week ago, and after a 24 hours passed I lifted them by the lid and they were fine. No buttons were up. Today, I did that test again, and shook them around by the lid and everything was still fine. Am I ok to keep these?


r/Canning • • 1d ago

Recipe Included First time trying red wine jelly!

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24 Upvotes

Used the recipe from the Ball complete book. I think it turned out great! Husband is unsure and thinks I wasted wine haha


r/Canning • • 2d ago

General Discussion Last of the home grown tomatoes picked and used

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132 Upvotes

The last of my tomatoes became spaghetti sauce with meat.


r/Canning • • 1d ago

Is this safe to eat? Is this beef broth suspect?

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0 Upvotes

I came across a few cans of beef broth I canned a little over a year ago. They looked a little iffy to me so I opened one up outside, expecting the worst. The lids were still down, and there was a very strong vacuum and a satisfying *ssshhuuuuck* sound when I opened it. Did a sniff test and it smells super beefy and not at all rancid, sour, gross, etc. I didn't really do a protein or fat skim before canning so I'd expect there to be plenty of "stuff" floating around, but I've never really let my canned broth go more than a few weeks so I don't know if this is normal or not.

Does this look like it might be okay?

Recipe: pho beef broth canned in a Presto pressure canner according to the Presto recipe book guidelines. I always either increase the pressure (15 instead of 10 lbs) or increase the time by ~50% when I can.

Date canned: 1-1.5 years ago

Storage conditions: room temp in the back of my cupboard

Seal still very strong.


r/Canning • • 1d ago

Understanding Recipe Help Pomona’s Apple Pie Jam Question

1 Upvotes

I’m looking to make Pomona’s Apple Pie Jam and I have a couple questions:
1. The first step is to make applesauce. I usually make my applesauce in the Instant Pot to speed up the process a bit (peel, core, cut apples into chunks, add 1/2 C to 1 C water, pressure cook for 8 minutes)—would this be safe to do for this recipe instead of simmering on the stove?

  1. Would it be safe to use unsweetened apple cider as my liquid for the applesauce instead of water? Just think it would add a bit more flavor and natural sweetness.

Thank you all for your help!


r/Canning • • 1d ago

Pressure Canning Processing Help How long after making broth can I safely can it?

0 Upvotes

We made broth a week ago but haven’t gotten around to canning it. Is it too late? We have very little freezer space.


r/Canning • • 2d ago

Refrigerator/Freezer Jams/Jellies Beautiful colour from the Quince Jelly I made, now for the Membrillo!

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60 Upvotes

r/Canning • • 2d ago

General Discussion All in days work

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62 Upvotes

Apple sauce and some pickled beets


r/Canning • • 1d ago

General Discussion Bone broth

0 Upvotes

hey guys, I made bone broth and canned it recently. I just ladled to hot bone broth into jars, and submerged them in the boiling water bath for 15 minutes. Google ai is now telling me I need to throw these away because I didn’t skim the fat off the top, which can ruin the seal, and because I did a water bath canner instead of a pressure canner. this feels extreme to me, so now I’m thinking of keeping them in the refrigerator and eating them relatively soon, within a few months. what do you guys think? Is this still safe to eat? it sat in a cold part of my home overnight, definitely below room temperature, mayb refridgerator level maybe not.