r/Canning May 26 '26

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

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  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]

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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 5h ago

General Discussion Tomatoes are done!

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Followed to NCHFP process for crushed tomatoes in their own juice.

It was a rush to finish them before they went off, it’s been hot and humid here! And I had to split the work up in to a few sessions to prep them all to be processed.
Had the fans blowing on the tomatoes overnight to dry them out after I spread them across the whole counter for the night


r/Canning 10h ago

Is this safe to eat? Mold on the outside of the jars but the seals are fine. Are my beets okay?

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I checked on my canned beets today and there was some mold on the outside of the jars. They're still sealed and as far as I can tell the beets themselves look fine. My instinct is to say that it's just from goo on the outside of jars and the beets are fine, but what's the general consensus on this type of situation? I used the recipe from the national center for home food preservation and a water bath.


r/Canning 8h ago

General Discussion Arggghh this isn't 1/4

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Just spent an hour making Kiwi preserves, is this much space at the top a dealbreaker?


r/Canning 18h ago

Recipe Included Tomatotown

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This represents thirty-eight plus pounds of plum-ish tomatoes from my garden. Final yield five quarts, nine pints, four half pints. Used the Big Unit (my larger All-American) for the first time this year, and processed the quarts first, then the pints and half pints together. NCHFP method linked in comments


r/Canning 6h ago

Recipe Included Can I do the rest tomorrow?

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My recipe yielded more than I expected. I still have probably 3 pints I could can yet. But I’m tired, I don’t have the jars cleaned etc etc. if I throw the salsa in the refrigerator and reheat tomorrow, will it be safe to then can it tomorrow? Thanks in advance.


r/Canning 14h ago

Is this safe to eat? Substituted habanero's for thai chili peppers. Is it safe?

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I used a canning recipe from a better homes and gardens canning magazine that says all the recipes are tested to be safe. I made the hot garlic pickles variation of their dill pickles recipe. It says to use 1-2 thai chili peppers. I could not find those so I used 2 habanero peppers per jar instead. Is this a safe substitution? I also halved the sugar because I had read that it was safe to do so and the first time I made the regular dill pickles they were too sweet. They are all sealed but the headspace is looking a little bigger than a half inch to me now. Are these safe to eat?


r/Canning 6h ago

Safe Recipe Request Canning tomatoes

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I’m looking for a safe tested recipe for canning tomatoes. I originally wanted to do diced tomatoes and crushed tomatoes because that’s how I like using them in my sauces, but I read somewhere that canning whole or chunked tomatoes is a rebel canning method? I plan on using some for salsa as well but I have a recipe for that already.

I have almost 3 large freezer bags full of frozen tomatoes and still so many in my counter with more to come off my plants. I need to make room and start processing them.

Also if I wanted to can my own sauce with spices of my choosing can I do that and just follow a basic sauce recipe, sub what I like and add whatever acidity is needed to each jar? TIA!


r/Canning 7h ago

General Discussion Uses for ground beef

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In prior seasons, I canned more meats than I'd expected to cycle through, and need to free up some jars.

What are your favorite uses for canned ground beef?

The dog has been helping some.


r/Canning 11h ago

Waterbath Canning Processing Help What happened and can I save this?

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Long time lurker, first time canner. Be gentle.

I waterbathed quarter tomatoes for the first time and some of the lids bent. What did I do wrong and what, if anything can I do to save this?

Is it possible to replace the lids and try again later?


r/Canning 1d ago

Is this safe to eat? Water bathed 140 pounds of romas without added acid

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Just finished canning 140 lbs picked the same day from a farm. We’ve done this many times: Blanch tomatoes and remove skins Pack in jars, ensure no air bubbles Leave a half inch of space Add 1 tsp salt per quart Process in water bath for 45 minutes

I revisited recipes before we started but couldn’t convince my husband we should add acid since we’ve never done it before. So now I can’t let it go and think we’re idiots and wasted time money and food.

Is there any way to salvage this? Can they be used? What about boiling for 10 minutes? FWIW I ordered a digital ph tester arriving tomorrow.


r/Canning 7h ago

Waterbath Canning Processing Help Does a recipe remain safe if you don’t end up using the amount or type of cucumbers the pickling recipe calls for?

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First time canning so probably stupid question. I’m making the ball blue book kosher style dill pickles. The recipe calls for 8 lbs cucs for 3 quart jars. I was not able to fit that many in 3 jars probably about half or a little more. And I didn’t have pickling cucumbers only slicers. Does the recipe remain safe if you end up using less cucumbers than the recipe calls for?


r/Canning 3h ago

Is this safe to eat? Hey guys how screwed am I?

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This is my first time canning and I think I really messed up, I put the rest of my tomatoes in the fridge and will be attempting to hot pack tomorrow instead of cold packing. These just came out of the water bath, can I save them or should o toss them?


r/Canning 10h ago

Safe Recipe Request Looking for pickle recipe

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Looking for a sweet pickle recipe that has pearl onions in it. Trying to recreate the sweet mix jar of pickles that comes from the store with cukes onions and cauliflower but without the cauliflower.


r/Canning 11h ago

Prep Help Help me make a grape mash without seeds?

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I bought a Weston food mill / strainer. It looks almost exactly like the one in this photo.

I would like to make grape jam, but I can’t figure out how to remove seeds while keeping skins and pulp! I would like to have pulp and skins in my jam, but no seeds.

The output from the strainer in this photo looks magical to me vs. actual based on my own experience trying to use it. I wonder if this photo was staged to look so good.

I have tried to use the Weston machine multiple ways. I have tried warming and softening the grapes. I have tried different sized strainers. I have tried mashing and then putting the mash through multiple times. Most of the time I only get liquid out. Or, if I use a coarse mesh strainer, I get seeds out too.

Can anyone tell me what steps and what attachments (or what machine) will spit out a grape mash that looks like the one shown in the photo? Is it even possible?

What size of mesh, type of piston, number of iterations, etc? Basically, what technique works that is fast to de-seed but keep everything else? I’d like to get a jam, but without going through each grape 1 by 1 and taking out the seeds by hand. THANK YOU.

P.S. most of the other posts I see about grape jam to me look more like grape jelly (too clear, made with juice).


r/Canning 20h ago

General Discussion Just out of the canner… Bernardin jalapeño jelly recipe, except I used Cayenne and half a ghost pepper.

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r/Canning 14h ago

Refrigerator/Freezer Jams/Jellies Help, making raspberry jam with frozen berries

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Hey Community! As the title suggests, I’m making raspberry jam using frozen berries from my garden this year. I left the berries to defrost in the fridge overnight due to poor planning on my part yesterday. Prior to defrosting they weighed 2lbs 9 oz. I pulled them out this morning and am surprised at how much liquid drained and am worried if this is an issue. I weighed them just now and berries are only 1 lb 8 oz and the liquid alone is 1 lb 1 oz.

Im hoping you all can give me some advice before I start after the task. Should I add juice back in? I’m planning a no pectin recipe using fresh lemon juice, lemon rind, and 24 oz honey.


r/Canning 13h ago

Waterbath Canning Processing Help Plum hot pack first timer

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I overcooked the plums while making Ball Plums in heavy syrup hot pack. I filled jars but there was no extra room after filling to add more syrup. Is it a problem to have the plums basically mush? I’m sure they will taste good but is it safe?
This is to show the texture of the leftover syrup, the jars are filled with the majority of plums cooked.
Asking about safety and also what to do with leftover syrup??


r/Canning 14h ago

General Discussion New to canning what would you want to know before starting!

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What’s something that you wish you would’ve known? Or a lesson you learned the hard way!


r/Canning 1d ago

General Discussion Pantry is looking nice, just had family and friends visit and she is cleaned out almost I love feeding people. Next up canning, apple pie filling and Pho broth my fave.

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r/Canning 20h ago

Pressure Canning Processing Help Pressure canning crushed tomatoes

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Hello canning brigade! I am new to this community and I love how clear the values and goals are, and how kind and helpful everyone is!

I've got 3 crates of organic homestead tomatoes and will be turning a good portion of them into crushed tomatoes for canning. If I use a pressure canner, do I have to use citric acid or lemon juice? I do not know who to trust in the wide web of internet opinions 😉

Thanks, friends!


r/Canning 20h ago

Is this safe to eat? Applesauce

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Water bathed pints of applesauce. Looks like we had some sauce around the outer rim. Everything sealed, but perhaps had some seeping going on. Safe, errr no?


r/Canning 19h ago

General Discussion Anyone make the Healthy Canning Roasted Tomato Guajillo Salsa? Need feedback and some chili questions for enchilada sauce!

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Sooo many salsas. Need to make sure I write down which ones I like!

Feedback on Healthy Canning Roasted Tomato Guajillo Salsa? before I go to the trouble Roasted Tomato Guajillo Salsa - Healthy Canning in Partnership with Facebook Group Canning for beginners, safely by the book

Anyone? Salsa Ranchera roasted veggies Salsa Ranchera Recipe | Ball® Mason Jars

This enchilada sauce says to use *New Mexico* chili peppers. Can I substitute Guajillo chili as I have those on hand? Enchilada Sauce Canning Recipe | Ball® & Kerr® Fresh Preserving

Thank you so much to the members here!


r/Canning 1d ago

Is this safe to eat? Is this an air bubble?

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Water bath canned apple sauce for the first time tonight and followed the Ball recipe exactly. Just wondering if this is an air bubble or if this looks normal/ok? I did use my little tool to remove air bubbles on each jar.