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]

71 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 • • 1h ago

Understanding Recipe Help Can I reduce sugar in a rested recipe?

• Upvotes

I’m making apple pie filling with this trusted recipe and want to know if I can reduce the sugar a bit. I don’t like it very sweet. I will add the bottled lemon juice since I’m unsure of the acidity of the apples. Thanks for advice!
https://nchfp.uga.edu/how/can/canning-fruits-and-fruit-products/pie-fillings/apple-pie-filling


r/Canning • • 4h ago

General Discussion Question about how to get a recipe tested

3 Upvotes

All products under the Cross & Blackwell brand were discontinued (by Smuckers) back around 2020. One product they made was called Chow Chow, a piccadilly.

My family has been using it on Cornish Pastys going back several generations. During WW2 Chow Chow was unavailable & family legend is that a great uncle of ours was making it. My grandfather & his brothers & brother-in-laws all worked the copper mines in Michigan's Upper Peninsula. My grandmother was Cornish.

After four attempts I got a recipe that is damn close to what C&B made. This recipe has Cauliflower, pickles, & pearl onions salt cured (in the fridge) then cooked in a mixture of vinegar & English mustard powder. The pint jars are water bath processed & then stored in a fridge for safety.

A while back I read here in this sub that one can get a recipe tested for safety. Is that true? If so can I get a link please? I did try to locate this online but failed.


r/Canning • • 36m ago

Understanding Recipe Help "Medium Red Peppers"

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• Upvotes

Hello! I am at the end of pepper season and trying to make sure I have put aside peppers for the recipes I still want to make.

I've never pickled sunchokes before (if anyone has a recipe based on weight rather than volume, I'd appreciate it!), but in the effort to find a way to get my family to actually eat them I want to try. But I'm not sure how to interpret "medium red peppers" - medium size? Medium spicy? Am I overthinking? But I don't want to make it unsafe by guessing wrong...?

Thanks for any advice or recipe suggestions!


r/Canning • • 1d ago

Understanding Recipe Help Yesterday I made Cowboy Candy relish with the last of the jalapeños from our garden.

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65 Upvotes

I didn’t have enough jalapeños to made a full batch so it just went in the fridge. We will easily use 2 pints over the next few weeks.
My question is for future reference when I make a full batch and water bath them, can I dice the jalapeños instead of using 1/4 inch slices? Does that change the density too much?


r/Canning • • 18h ago

Understanding Recipe Help Question about Healthycanning Baked Beans recipe

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12 Upvotes

I made this recipe last year and would like to make it again, but I had a small issue I wrote down in the notes, meaning to ask about it before I made it again.

Of course, we know the measurements don't always add up to the number of jars, especially when sauce is involved. I ended up having to double the sauce part of the recipe last year and only barely ended up with enough sauce to top off the jars of beans the recipe called for.

I know it says you can top it off with the bean liquid if you run out of sauce, and I'm wondering if I would be better off doing that instead. The finished product, while delicious, was very strongly seasoned (very peppery), and I wondered if I was supposed to only use the amount of sauce the recipe called for and water it down with the bean liquid.

I'm questioning this because the recipe says:

  • Fill up the remaining ¼ of each jar with sauce, leaving still the 3 cm (1 inch) headspace.
  • Add additional water to jars from the reserved bean stock if you run short on sauce.

IF you run short of sauce. This tells me it's okay to make extra sauce and top the jar off with sauce. I'd rather not end up on the opposite side of the problem by watering down all that yummy flavor, but maybe there's an in-between solution.

Has anyone made this recipe, and can you tell me what you did and how it turned out?


r/Canning • • 1d ago

General Discussion Some Halloween Reflections on Pumpkin Yields

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19 Upvotes

If you're planning on canning your jack o' lantern in November (pro tip: use the tasty little ones), or just have a harvest coming in, here's some canning math for you:

The NCHFP says: "An average of 16 pounds [of pumpkin] is needed per canner load of 7 quarts; an average of 10 pounds is needed per canner load of 9 pints – an average of 2¼ pounds per quart."

Reader, I began Monday with a pumpkin that, intact with stem, pulp, rind, and seeds, weighed 23 pounds. Of note, pumpkin gets canned in 1" cubes, but pumpkins have a lot of curves, so the prep process generates a lot of offcuts in funny shapes.

Today I stand before you having extracted from this pumpkin:

8 quarts of canned cubes <canned per NCHFP>
7 pints of canned cubes <canned per NCHFP>
1 hot dish of pumpkin gratin with garlic made from offcuts (not canned)
1 batch of pumpkin-red lentil soup made from pumpkin offcuts (not canned)
2 cups of roasted pumpkin seeds (honestly kind of mid)
3 quarts plus a half-pint of pickled pumpkin rind (not canned> AND
some seeds saved to grow pumpkins next year

All this to illustrate that yield estimates are really loose guidelines.

Recipes in comments.


r/Canning • • 1d ago

General Discussion Newbie question, maybe stupid question.

5 Upvotes

I have water bath canned in the past but its been all of the same type in one day. Meaning to day is apple day, tomorrow is pickle day, and so on... So i keep the same water between batches. I have been given beets, a bunch of green peppers for jelly, jalapenos, banana peppers, and I still have apples to process into apple sauce. My question is do I need to change out the water in my canner between products or just lower the temp while processing the next produce and raise it to boiling point when its time for the next item?


r/Canning • • 1d ago

Waterbath Canning Processing Help Jelly set up very stiff

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12 Upvotes

I used the Pamona's recipe for a double batch of pepper jelly. The jelly has set up really stiff. I was hoping for more of a slightly runny consistency for using over cream cheese. Do you think I can achieve that consistency if I microwave it slightly before using? Just for future reference for myself, what might help produce a looser setting jelly in the future? What steps should I be troubleshooting? I tried very hard to stick to the recipe exactly.


r/Canning • • 1d ago

Safety Caution -- untested recipe Apple peppercorn jelly

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18 Upvotes

I got apple peppercorn jelly for Christmas about 10 years ago and I loved it. Can't find it anywhere so I finally just made it.


r/Canning • • 1d ago

Is this safe to eat? Apples and siphoning

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7 Upvotes

I made these sliced apples in light syrup. Followed directions but still siphoned like crazy. All sealed but obviously lots of liquid loss. Is this safe. Im about to do apple pie filling and am scared 😵‍💫


r/Canning • • 23h ago

Equipment/Tools Help Is pressure cooking and pressure canning manual stove tops two different things?

0 Upvotes

I went to a friends house to make homemade pasta sauce and loved it! My friend had a manual stovetop pressure canner that the pressure gauge went up pretty high. I have a small farm where I grow my own veggies and would love to can them or make pasta sauce. I bought a Mega Chef 24quart stovetop manual pressure cooker and realized the pressure gauge only goes to 20 psi when we canned pasta hers went to 30-40 to safely can the pasta sauce. Will this work? I’m new to all this!


r/Canning • • 1d ago

Is this safe to eat? Too much headspace

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6 Upvotes

This is the recipe i used.https://nchfp.uga.edu/how/make-jam-jelly/marmalades/apple-marmalade/

I added 2 extra tablespoons of lemon juice because my apples weren't tart and i wanted to increase the acidity just in case. One of my jars is short and the head space is an inch rather than 1/4". I water processed for an extra 3 minutes to ensure the seal took and the air was removed. Is this safe?


r/Canning • • 1d ago

General Discussion HUGE FAIL/ONE SUCCESS with APPLES Direction needed

3 Upvotes

TRIED to can small batch 4 pints plain apple 1/2 inch slices. Recipe says simmer 5 minutes in very light syrup. So now total MUSH. Now in crockpot to be apple butter (I Hope). Used Empire and Sweet Tango.

I did use half water and half apple juice and cane sugar to make syrup they were simmered in. So what did I do wrong? Thanks!


r/Canning • • 2d ago

Safe Recipe Request Chili Jam safe recipe request

3 Upvotes

I've had this chili jam recipe as a *fridge* jam, and it's fantastic. Looking for a safe, tested recipe for water bath canning, if one exists.

The link provided has canning instructions, but looks to be open kettle so I don't trust it.

Thanks in advance!

https://feedmekate.com/chilli-jam/


r/Canning • • 1d ago

Safe Recipe Request ISO a jelly or jam recipe for holiday gifting

2 Upvotes

I like to have jelly on hand as hostess gifts and coworker gifts for the holidays but I'm kind of burnt out on looking through recipes. Did peach bourbon last year; looking for a different one this year. Any suggestions?


r/Canning • • 2d ago

General Discussion is this a good deal??

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24 Upvotes

i haven’t bought anything for canning yet but i’ve been keeping an eye on marketplace. is this a good deal? good products? i’m so lost on what to buy. thanks!!


r/Canning • • 3d ago

General Discussion Just wanted to share my ADHD fueled 9pm canning

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45 Upvotes

Yes it is a good recipe. Just finally got the motivation to can last night like 9pm was only up til about 1 am haha.


r/Canning • • 2d ago

General Discussion Swapping Tomatoes Question

2 Upvotes

Can you swap red tomatoes for green tomatoes in a recipe? I know you can do the opposite but I can’t seem to find anything about this. Maybe I’m not looking in the right places, thought I would ask here TIA.


r/Canning • • 2d ago

General Discussion Do you use your canner water for anything when you're done canning?

17 Upvotes

I usually time it so that I have a load of bath towels needing to be washed, I load them into the washing machine. When I'm done canning, I've got a pot of water that I paid for, heated with energy that I paid for, so in the washing machine it goes.


r/Canning • • 2d ago

Is this safe to eat? First timer help

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2 Upvotes

Hey all, I used the Ball sweet apple cider butter recipe (in phots). First timer and realized after canning I missed the stir step after filling and now have tiny air bubbles. Does that mean they are not shelf stable? One on the last photo no air bubbles.
Edit: canned yesterday 10.20.26
Seal seems strong


r/Canning • • 2d ago

Safe Recipe Request Strawberry curd?

3 Upvotes

My family is absolutely obsessed with lemon curd, and this weekend we happened to find a great deal on strawberries and so have a glut of them. Out of curiosity I looked it up and found a strawberry curd recipe, it does include lemon juice and I know that to safely pressure can lemon curd you use bottled lemon juice, is there a way I cam safely water bath can strawberry curd, or is this a limited time treat?


r/Canning • • 2d ago

Pressure Canning Processing Help What pressure canner do you recommend?

2 Upvotes

I’m learning how to pressure can! It’s an investment I’m fully prepared to embrace. What brand is affordable but will last me for years? Affordable to me would be around $200 and I have a standard coil stove top.

Thank you in advance to anyone that takes the time to respond❤️❤️


r/Canning • • 2d ago

General Discussion Has anyone bought the Meals in Jars recipe pdf from UCANR?

5 Upvotes

Wondering if worth it. Has recipes for pressure canning meals in a jar for $10. Central Sierra - Master Food Preservers - MFP Bookstore | UC Master Food Preservers of Central Sierra This publication covers a wide variety of pressure-canned foods.