r/Canning • • May 26 '26

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

302 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]

75 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 • • 8h ago

Is this safe to eat? Strawberry Jam

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25 Upvotes

Used the Ball recipe for Strawberry Jam. Lots of the fruit floated to the top. Top area looks discolored. Is it safe to eat?


r/Canning • • 9h ago

Equipment/Tools Help My Dream Came True!

9 Upvotes

I truly hate my glass top electric stove. It’s slow to warm up, slow to change temperatures, and impossible to clean. My partner is the one to clean it, as I am not strong enough. Hate it!

I recently bought a steam canner, and chose a steel one, just in case….

The other day the microwave failed spectacularly. So, as it must be replaced, partner says “why don’t we get a new stove, as well. And while we’re at it, we may as well get a new refrigerator.” I took him to a store where there were people other than myself could explain to him what as induction stove is, and he loved it. So as of next week …. I will have an induction stove!

So, do you have any tips or tricks or simple instructions for using it? I’m looking at stainless steel cookware on Amazon, but I don’t really know what I’m doing. Any advice?

TL;dr. I’m getting a new induction stove and steel pans, and would seeking advice on using them.


r/Canning • • 6h ago

Is this safe to eat? Pickle Help!!

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5 Upvotes

​

Aight y'all. I'm most likely gonna end up tossing these to be safe...

But last month I jarred these pickles, and now I'm seeing like, little whispies? My immediate concern is obviously mold. But a tiny part of me hoping it's just something else. But there's a few whispies floating that I see, kinda hard to photograph but circled in blue. I also see it coming off the seeds? Which I circled orange. Could it just be the vinegar doing something weird??? I'd add a video as well but doesn't wanna let me.

Water canned. Liquid inside was boiling when I eventually removed from water. Top looks perfectly sealed. Ingredients are 1. Cucumbers 2. Water 3. Vinegar 4. Salt 5. Sugar 6. Pickle crisp 7. Dill flowers 8. Garlic 9. Mustard seed 10. Peppercorn.


r/Canning • • 8h ago

Safe Recipe Request I forgot the damn lemon juice

4 Upvotes

in my last batch of of grape jelly. I'm reading conflicting advice. Are wild grapes acidic enough to be shelf stable after water bathing? 🥲


r/Canning • • 14h ago

Refrigerator/Freezer Jams/Jellies Concord grape jelly

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10 Upvotes

Starting my 🍇concord grape jelly today 🍇


r/Canning • • 12h ago

Pressure Canning Processing Help Please help me understand how this keeps happening!

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6 Upvotes

I follow the instructions in the manual as precisely as possible. In this case, boil okra for 2 minutes, hot pack with boiling hot water with 1 in headspace, pressure cook at 10 lbs for 40 minutes. I feel I quite thoroughly remove air bubbles. I carefully clean the rim, I use name brand, and the lids are new every time.

I follow the manual‘s instructions, to add 3 quarts hot water, immediately after packing add jar to tray, secure lid, when steam is coming from valve to allow to heat for 10 minutes, then add weight. start timer when weight begins to rock back and forth. when timer is up remove from heat, allow to fully depressurize.

i have a Presto canner.

All of my garden vegetables come out like this 💔💔 I have heard it’s safe to eat because it’s sealed.

please help


r/Canning • • 9h ago

Safety Caution -- untested recipe modification How do I make my jelly hot?

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3 Upvotes

I made the "Ball" Habanero-apricot-jelly recipe and it did come out very good! The recipe called for 1/4 cup of Habaneros and I used a 1/2 cup with seeds and I BARELY can taste any heat. The recipe calls for 6 cups of sugar. I want to make another batch and would like ideas to make it hotter without affecting the consistency or texture of the jelly. I thought about using less sugar or more Habaneros but wasn't sure if that would affect how it sets up or not.


r/Canning • • 1d ago

General Discussion Just saw this deal at the Portland, OR. Costco

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105 Upvotes

Wanted to let people know that there's a great deal on the All American 925. It's selling for $500 on their website. I just picked one up. I've been waiting for the price to go down and today is the day!


r/Canning • • 1d ago

General Discussion Newbie Thrifted books

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90 Upvotes

Are these two useful books? Newbie here and want to get into jams!!


r/Canning • • 14h ago

Prep Help Apple cider butter help

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3 Upvotes

Making this. Did my 6lb of apples. Ended up with 8 cups of puree not 12. Now what? Used a regular measuring cup like you would use to measure flour. The apples I weighed with a scale 6.5lb.


r/Canning • • 9h ago

Safe Recipe Request tomatillos?

0 Upvotes

Can one water bath a puree or do I have to make salsa? Thanks.


r/Canning • • 18h ago

General Discussion Newbie question!

3 Upvotes

My family has been canning for years and has always done things the same way. Since my husband and I started researching canning on our own, we want to make sure we’re safe!

Once you open a jar, how long does it typically keep in the fridge? I know jams/jellies would show mold, and pickles last a long time, but what about salsa? My parents always have an open jar in the fridge, and they don’t always eat it within a week or so 😬
And what about other tomato based cans?


r/Canning • • 9h ago

Is this safe to eat? Is reprocessed tomato sauce safe?

0 Upvotes

I was canning tomato sauce (following National Canning Institute recipe) and I assume I must have overfilled jars (despite measuring with a ruler) because after the 45 mins water bath canning (I'm at 1200ft) they leaked sauce. I opened them immediately, scooped out some sauce to bring back to the headspace required, wiped the rims, put new lids on, and put back in for another 45 mins. At the end of that time they were again leaking, though less. Lifted the lid, wiped the rim, and when I set the lid back on it immediately stuck and sealed on two of them (button down). The third the button dropped as it cooled overnight. Are any of these safe to eat? And what could have gone wrong on the reprocessing? I don't have a picture but the jars did have air pockets/bubbles in them when I took them out of the water bath. Did I take them out of the bath too fast?

Editing to add: the recipe I followed is https://nchfp.uga.edu/how/can/how-do-i-can-tomatoes/standard-tomato-sauce/, canned last night (10/1) and sitting since then on my counter. Seals seem to be holding (buttons are still down).


r/Canning • • 1d ago

General Discussion Allowed? North Dakota Extension Class - Free and Online at your own pace - Food Preservation 101

59 Upvotes

To the mods - is this allowed? Maybe added to FAQ. So many extensions have free classes/training/information

Food Preservation 101 | NDSU Agriculture NDSU Extension and Cankdeska Cikana Community College have partnered to bring you seven educational modules on food preservation!

  • Course topics include Drying, Fermenting, Water Bath Canning, Pressure Canning, Freezing, Foraging and The History and Usage of Herbs.

r/Canning • • 13h ago

Equipment/Tools Help Grape jelly

0 Upvotes

Looking for recommendations for an electric food mill to process around 150 pounds of Barbera grape into jelly. Want to make a traditional Calabrian pastry


r/Canning • • 1d ago

General Discussion Plum jam tips/tricks? Do they make a good jam, and are they naturally high in pectin? Is this enough to be worth trying to jam with/how many jars worth?

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25 Upvotes

r/Canning • • 12h ago

Equipment/Tools Help What’s your minimal set up look like?

0 Upvotes

I’m new and I’m looking to purchase only is needed. I want to properly seal and store veggies to start.


r/Canning • • 1d ago

General Discussion Storage safety

5 Upvotes

Hi friends,

I'm building up a good supply of canned goods, to the extent that I now have to get creative about storage.

I like to do small portions of a great variety of things, so lots of my jars are tiny. My shelves, however, are not tiny. So I seek guidance; can I stack these little guys or will that increase risk in a failed seal situation like leaving the rings on? Can I store them on their sides or upside down? I'm working within scant budgets of cash and square footage, so I'd love to not have to buy shelves of a more appropriate size.

I appreciate your wisdom and advice. 🩷


r/Canning • • 1d ago

General Discussion Bone broth

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7 Upvotes

Been making bone broth for quite a few years. I use it in the place of regular broth for just about everything.


r/Canning • • 1d ago

Waterbath Canning Processing Help Cloudy pickles. Salt to blame?

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4 Upvotes

Couple pickle jars showing some cloudiness. Couple initial batches did use regular table salt rather than pickling salt and I was warned some cloudiness could occur because of that. Just hoping to verify that's what it looks like and not something worse. Was much more concentrated white at the bottom of the jar before I agitated it looking at it.

Is not present in all the jars, maybe around 1/3 to 1/4. Unfortunately I only labeled with the year so I can't verify which ones I did pre-purchase of pickling salt as they are all from this year. (First year canning)


r/Canning • • 22h ago

Understanding Recipe Help Cranberry apple jelly question

1 Upvotes

Hello! I'm hoping to make some cranberry apple jelly. I have the Ball Complete Book of Home Preserving recipe book which has recipes for regular apple jelly and crabapple jelly.

Is there a way I can make it a cranberry apple jelly instead and still have it be safe?

Would I add the cranberries at the juice making phase?

Thanks!


r/Canning • • 1d ago

Safe Recipe Request Apple Jelly from Pressed Juice

4 Upvotes

There’s lots of good Apple cider made in my area and I’d love to make jelly with it. Are there any tested recipes that start with pressed juice instead of the chop-and-poach method?


r/Canning • • 1d ago

Waterbath Canning Processing Help Refrigeration between recipe making and processing?

3 Upvotes

I made the Ball-approved recipe for Salted Caramel Pear Butter. The recipe took a few hours longer than I expected to reduce to the correct texture, so I didn’t have time to make the recipe and process in the same day. The butter has been refrigerated since I made it and I brought it back to boiling before processing in a water bath per the recipes instructions. Was my refrigerated period food-safe or should this batch all go in the fridge? I’m a canning newbie so would appreciate any advice thank you!

Recipe: https://www.ballmasonjars.com/blog?cid=salted-caramel-pear-butter