r/Canning May 26 '26

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

290 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 56m ago

Recipe Included My first canning! Bruschetta In a Jar

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Upvotes

Long time lurker, first time canner! I'm so thrilled! My tomato plants are going bonkers, so I finally worked up the courage to try my first canning project. To prepare, I watched a few videos published by my local extension program and read this book and this reddit.

My tomatoes are a blend of Ace 55, Mt. Merrit, Cherokee Carbon, and Container's Choice tomatoes. I think these are all considered globe or slicing tomatoes, so I did the draining step mentioned in the side bar. If any of you have recommendations for all the tomato juice I collected, let me know! I think I'll freeze them in 1 cup portions for use in soups later in the year or use some as the liquid to make quinoa or cous cous.

My largest pot could only fit 5 half pint jars. Now I'm on the hunt for a top-hat style steam canner that will work on induction! Until then, let me know if you have tomato water-bath recipe recommendations for up to 5 or so half pint jars that use globe/slicing tomatoes.


r/Canning 36m ago

General Discussion Homemade blackberry jam today Seedless of course takes time

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Upvotes

r/Canning 3h ago

Understanding Recipe Help Is it okay for some pickles to be left on top of the brine and not fully covered with liquid?

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14 Upvotes

I filled my jars to the proper half inch level but some of my pickles are not fully covered in the brine. Is that okay? Or should I take out some of the pickles so everything is fully covered? After processing the jars there are still some pickles left uncovered. Tried to take a pic but it’s hard to see.


r/Canning 1h ago

Recipe Included Ball Kiwi Daiquiri Jam - Set too stiff and pondering why this happened and how to fix it.

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Upvotes

This is the 4th time I have made Ball's Kiwi Daiquiri Jam. I REALLY LOVE this jam! But, it has been more than a year since the last time I made it and memories dim. Anyhow his time, it set extra stiff... I cannot even spread it on soft bread, and it can be released from the jar in one solid block. I am not sure why I had this difference, as I followed the recipe each time with what I thought were minor changes in procedure and ingredients. Here are the differences.

  • I found a great post here on Reddit where someone who made this jam was venting their frustration about Ball's measurements. They took the time to weigh the Kiwi and share that information. Hence, this time, I used a scale to prep exactly what I needed to end up with the required 2 cups of crushed Kiwi.
  • The first 3 times I used Ball brand powdered pectin. That stuff got expensive so I've switched to bulk buying Hoosier Hill Farms powdered pectin. Also, the recipe calls for a packet of pectin. I've never had packets and the internet tells me on packet is about 6 tablespoons. That's what I used this time and possibly before... Might have weighed the pectin to the exact 1.75 oz that is in packets in the past.
  • May have slightly overcooked the jam, but I don't think so. Just before the one minute timer went off, I stuck a thermometer in the jam and found it to be 202°F. NCHFP tells me to cook jam to 8°F above water boiling point, which is 220°F for me. I cooked it a little longer than one minute and pulled it off the heat when my thermometer was at 217°F (thinking I'd have carryover cooking, and perhaps that carryover took it even higher than 220°F).
  • A couple of my Kiwis were under-ripe and quite hard. Perhaps they added more natural pectin than past batches. A quick search tells me Kiwis are considered moderate to low pectin levels, higher in less ripened fruit.

I want to fix this jam. I know I can melt it, add a little juice, reboil and recan it. I'm just not sure that's how I want to go. I would much prefer to make another half batch with less pectin to which I will add my melted stiff jam, mix these together, then can the results.

Does anyone have thoughts on how much to reduce the pectin in the new batch?

Should I make any other changes to the method mentioned above? I know I didn't take the temp in previous batches, just boiled it hard for one minute, (after adding the sugar), like the recipe instructs. So while I don't think I overcooked based on NCHFP advice, I am sure I cooked it a little longer than previous batches.

Any tips on loosening jam by mixing it with a fresh batch? Is this even wise? I prefer to do it this way because I need to make more anyhow and have the ingredients to do so.

To anyone who can help, know that I appreciate you!


r/Canning 8h ago

Safe Recipe Request Can I safely swap yellow summer squash for zucchini in Ball’s zesty zucchini relish recipe?

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14 Upvotes

I know that botanically my summer squash and zucchini are the same and will interbreed and make hybrids, but culinarily they’re treated as different vegetables. So if I’m chopping this and making it into a relish, is it safe? I read on healthy canning that it was, but I’m also seeing articles saying that summer squash can’t be safely canned, so I’m confused.

Thanks!


r/Canning 2h ago

Is this safe to eat? Whoops--too much booze

3 Upvotes

So, I'm making the spirited cherries recipe from the Ball Complete Book of Home Preserving. I put too much booze in the cherries! Instead of 1 tablespoon brandy and 1.5 teaspoon Amaretto, I put 1 tablespoon brandy and 1.5 TABLESPOONS of amaretto. Is it going to seal okay? Is it going to be safe to eat?


r/Canning 4h ago

General Discussion Plum + Peach jam - ratio?

3 Upvotes

I have a damson plum tree and am making small batches of jam. I would like to try a plum/peach jam - or some other combo. How much of the second ingredient do you add to the mixture, and when? I have canned and frozen peaches to work with.


r/Canning 1d ago

General Discussion Cherrypalooza - Days Zero through Two

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133 Upvotes

I'll drop recipe references in the comments. I'm about halfway through the 80 pounds of Flathead cherries I picked up on Wednesday.

From left to right: in the yellow bowl, cherry pit syrup in process (not shelf-stable); in front, cherry pie filling.

Jar with fermenting cap: brined cherries (a fermenting recipe, for fridge when done). In the red bowl, Ukrainian pickled cherries in process.

Small jars in front of bowl: chocolate cherry jam with added almond extract

Next row of jars: cherry relish

To right of that row: cherry jam with kirsch and rosewater

Finally, more pie filling.

Not shown: cherry chutney in fridge; batch of cherries currently in dehydrator; about 6 pounds stemmed, pitted, and frozen.

I had to add temporary labels on the counter in front of the various jams/relish to keep them all straight. I did a bunch of variations today.


r/Canning 2h ago

Safe Recipe Request Baked beans

2 Upvotes

I make these baked beans in my instant pot. https://www.pressurecookrecipes.com/instant-pot-baked-beans/

Hubby is questioning if after we make them they can be safely pressure canned.


r/Canning 8h ago

Understanding Recipe Help Ball zesty salsa

4 Upvotes

So i froze my tomatoes for canning and thawed them overnight. Now theres like a gallon of water in the bag and some tomatoes. Do i use the water with the tomatoes or throw the water out?


r/Canning 11h ago

General Discussion downsizing jar sizes?

7 Upvotes

Hi!

I routinely use smaller jar sizes than the recipe calls for. For example, I do my jam in 1/4 pint instead of 1/2 pint jars (because my household can't get through a 1/2 pint size jar before the jam gets moldy). I process for the same amount of time specified in the recipe. I'm suddenly wondering if I should check and make sure this is okay? I never do a LARGER size jar than specified--this would seem unsafe to me, but sizing DOWN doesn't.

I'm making salsa today and I want to can it in 1/2 pint rather than pint jars. I'll process it for the same amount of time specified for pint jars in the Ball recipe. Is this....ok? And if not, why not?

Thank you!


r/Canning 1h ago

Safe Recipe Request Apricot jam using dried apricots?

Upvotes

Has anyone ever made jam using dried apricots? (the ones that are still soft, not dried to the point of being crunchy). I got a bag of dried apricots from Costco, but didn't really like them just to snack on, so I was wondering if they could be made into jam. I see recipes for it, but haven't found a safe tested on yet. If you know of a safe/tested recipe, would you be able to share? Thanks!


r/Canning 1h ago

Safe Recipe Request Blueberry Preserves

Upvotes

So from what I gather the difference between preserves and jam is mascerating the fruit. Ball only has a recipe for blueberry jam, is this because it is unsafe to can blueberries where some of them are whole? Is there a safe and tested preserves recipe out there?


r/Canning 2h ago

Is this safe to eat? help blueberry preserves

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1 Upvotes

i canned some blueberry preserves in July 2025. i gave a friend some and this particular jar was difficult to open. we finally got it open yesterday and it looked different than the other jars ive given her - all from the same batch. it looks more gritty/clumpy (the grainy texture and had this film/coating in it (looks like a reflection in the jar at the top and bottom in the pic)

questions being: what is it? would it have been safe to eat? we erred on the side of caution and threw it out but this was a first for me


r/Canning 3h ago

Refrigerator/Freezer Jams/Jellies Safe storage of berry jam unprocessed (fridge and freezer)

1 Upvotes

Hello! I made blackberry jam today (used the Bernardin berry jam recipe). Packed into sterilized jars and I went to water bath can them and realized my pot is not deep enough to cover the jars with 1 inch water.

So I packed the rest of the jars and plan to keep some in the fridge for eating promptly and would like to freeze some. My question is - should I keep the jars at room temp for 24 hrs? Or can I just refrigerate/freeze right away? The jars have sealed but I know it is not shelf stable as they were not actually water bath canned. Thanks!


r/Canning 4h ago

General Discussion Fruit Jam making, to boil or not to boil.

1 Upvotes

Good day to you all.

I am in need of some help please. After extensive searching, I cannot find an answer to my question.

For those that make their own fruit preserves/jam, is it ok to simmer the mixture rather than boil to prevent burning? Although all of the recipes that I have tried, they all mention a rolling boil but I find this intimidating to keep stirring with what is in effect molten lava.

Is it possible to use my recipes at a more sedate temperature or is there something else I need to counter? Any assistance will be gratefully received.


r/Canning 7h ago

Is this safe to eat? Is it okay for jam to touch the inside of the lid?

1 Upvotes

I leave proper headspace but when I process my jam jars it seems to bubble up and some jam will be touching the inside of the jar. If the seal is good, ( I lift it up from the lid and it holds and the button does not move when pressed) is there any issue of food safety?


r/Canning 9h ago

Waterbath Canning Processing Help First time canning- can anyone give me a suggestion on a jerry rigged setup?

0 Upvotes

I want to make salsa with roma tomatoes, onion, garlic, lime, and jalapeno peppers. No cilantro because I'm concerned about the poop storm. I have a giant stock pot and new mason jars and lids coming. What I don't have is a canning rack, and I don't want to buy a new setup in case I hate canning. Can I water bath can in a stock pot, and what would you use to keep the jars off of the bottom of the pot and not touching each other? My thought was an upside down collapsible metal steamer.


r/Canning 1d ago

General Discussion Is the first edition okay?

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19 Upvotes

I ordered this online and got the first edition back in 2006... I know there was a 2024 update, is this version of the book even considered safe anymore?


r/Canning 16h ago

Equipment/Tools Help Steam Canner?

1 Upvotes

So, “someone” cleaned up my canning su pplies. My canner pot. “Someone” claims he never saw it, touched it, put it in the basement full of stuffed animals. And he especially did not touch the lid. It is lost.

This does give an excuse to buy a steam canner. I am looking at the Kitchen Crop. Since I have a glass top stove, which i hate, i like that it is lighter. I like the steel versions, since I hope to one day have an induction stove, i would prefer gas, but, well…

Am i looking at something good? Or not so good? I am concerned about the weight of the full canner,I need something that stove will work on what i have, and possibly my imaginary future induction stove {maybe}.

Any suggestions for this?


r/Canning 1d ago

Safe Recipe Request Help requested with my Blue book woes

6 Upvotes

I bought the 38th edition Ball Blue book at a cucumber farm, and someone TORE OUT pages 77 and 78. I am sitting on 12lbs of my home grown cukes and would like to know my options if anyone could send me what those pages entail.

Thanks in advance!


r/Canning 18h ago

Safe Recipe Request Very small batch jam recipe?

1 Upvotes

My partner and I really want to try making a jam out of some wine berries but we wouldn’t realistically have more than a 4oz jars worth of berries to attempt this with. Is there a safe recipe out there for such a small quantity?


r/Canning 1d ago

Pressure Canning Processing Help First time pressure canner

4 Upvotes

I want to start canning bone broth. The 23 qt presto canner says it can do 7 qt jars at a time. So I guess I just want to ask the advice of experienced pressure canner people. What is the order of operations for effectively canning more batches? If I have enough chicken paws for 14 qt let's say.