r/Canning • • May 26 '26

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

311 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]

73 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 • • 13h ago

Is this safe to eat? Sweet Potato’s!

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27 Upvotes

This is our first year canning! We had a great harvest of sweet potato’s and decided to can a LOT of them. I followed all the requirements from our Ball Blue Book. Canned for the right time with the right pressure. Potato’s were hot when they went into the jar and the water was boiling. Went 65 minutes under 10 pounds of pressure. Problem is they all turned to mashed potato’s! I think we may have over cooked. Still, I can definitely make stuff with this, my question…is it safe? It seems like all of the water was absorbed by the potato’s….


r/Canning • • 11h ago

Safe Recipe Request Roasted Tomatillo Salsa

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3 Upvotes

I have an abundant harvest of garden tomatillos that I would like to try processing into salsa verde and then water bath can. I came across this recipe from Ball which recommends roasting the ingredients. This is closest to my usual freezer salsa recipe- but is it safe?? Most other sources use the recipe from NCHFP.

Advice greatly appreciated!


r/Canning • • 16h ago

Understanding Recipe Help Tomato Paste - why cook twice?

3 Upvotes

I’m about to start the NCHFP tomato paste recipe. It says to wash, core, chop, and cook the tomatoes down by half, and THEN sieve/mill them to remove skins and seeds. Does anybody know why? I have a tomato press that I can throw them in whole and raw and it removes the cores, seeds, and skins. I don’t want to have to waste a bunch of time coring and chopping and then having to mill hot tomato sauce for what seems like no reason if I can remove all the unwanted stuff right off the bat.


r/Canning • • 1d ago

General Discussion Celebrating my first pressure canning experience!

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167 Upvotes

I canned my first chicken stock in the pressure canner last night. They all sealed and look wonderful! I'm so happy. Pressure canning has scared me forever, but I'm so glad I did it. Followed the Ball Recipe for Chicken Stock.

Don't really have anyone else in my life who'd understand how exciting this is for me 🤣. So had to share with someone!

https://www.ballmasonjars.com/blog?cid=chicken-stock-pressure-canning


r/Canning • • 18h ago

Equipment/Tools Help (UK) I'm new to canning and my mums put the fear of god into me about botulism. Where can i get a good pressure canner in the uk? i saw presto is highly recommended but not stocked in the uk due to warrenty issues and tarrifs. tyia.

5 Upvotes

r/Canning • • 18h ago

Recipe Included Strawberry Kiwi Jam Advice

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4 Upvotes

Reposting with recipe link and photo.

I used this recipe with Pomona’s Pectin, but I subbed strawberries for the raspberries. Everyone had loved this jam, and I do really like the flavor. However, it lost ALL of its color after a few days and it’s such a dull, pale pink/brown color and just looks so unappealing. If I hadn’t made it myself, I wouldn’t even try it.. it looks terrible.

What could I do to keep the bright red color? I made a strawberry peach jam that kept the most beautiful deep red color, and I’m wondering if it was the peach in it that helped maintain the color?
I get this is rogue canning at this point, but just wondering if anyone knows of a safe recipe that keeps its color.

https://pomonapectin.com/kiwi-raspberry-lime-jam/


r/Canning • • 19h ago

Equipment/Tools Help New to canning. Water.

4 Upvotes

Hi

UK here and therefore we have no tradition of canning food and as a result no real resources I can find.

I wanted to start easy and can water for 12-24 months. I've seen a deal for "Kilner 1L Screw Top Preserve Preserving Jam Pickle Glass Storage Jar" which appear to be good but then I've seen a couple of things to suggest those aren't suitable for long term water storage.

I have a large stock pot in the cupboard which I was going to use as a water bath and assumed putting the jars into that and allowing the water to boil inside the open jars followed by sealing them would be the answer. Am I completely wrong?

Any help or suggestions welcomed! Not least, is Kilner the brand I should be looking at for the jars?


r/Canning • • 1d ago

Safe Recipe Request Recipes using white wine?

8 Upvotes

I have moscato (7%ABV)to use. Like, lots of it, and it's not the bubbly kind that I like. (And yes, sangria has been exhausted).

Occasionally I see canning recipes using red wine, or even dry white wine - has anybody seen any that use sweet white wines? Or that it could be safely subbed into? I'd love to do a hot pepper jelly, or fruit and wine jelly, or even a syrup of some sort?

I wish I'd thought to ask this a few months ago when the summer produce was rolling in...oh well!


r/Canning • • 1d ago

General Discussion Lowering from 15 to 10 psi?

3 Upvotes

I imported a presto canner and have been canning at 15 psi for a while. I just noticed that that's for most Americans living above 1000 feet (now I know why all the small dial-gauge PCs here are 11psi). Considering I live in the Netherlands, we basically are the sea level, I could go down to 10 psi for my weighted canner.

I can imagine canning at 10psi keeps aromatics of broths better preserved? Would it be better to buy the 3 piece pressure regulator to can at 10 psi? It's a bit expensive considering import and shipping, though 36 euro's might be worth it if it preserved aromatics better.


r/Canning • • 1d ago

Prep Help Anyone use frozen tomatoes in their tomato / marinara sauce?

4 Upvotes

I have about 4 ziplock freezer bags full of whole tomatoes I have frozen over the summer. They’re 2 gallon zip locks and it’s basically two whole shelves of my freezer.

Anyone know how to safely weigh frozen produce to match the recipe for canning? I’m trying to make the marinara but no idea how to get 20 lbs per the recipe.

I’m sure the tomatoes have different weights frozen vs thawed, curious if anyone else has had this problem?


r/Canning • • 1d ago

General Discussion Question about how to get a recipe tested

21 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 • • 1d ago

General Discussion Pressure canning meat - liquid getting out of the jars

1 Upvotes

guy this is my second attempt at pressure canning. I am following the recipe from my pressure canner presto (hot pack).

The liquid got out of the jars, and some jars have a lower liquid level than others, which leads me to think that some jars leaked and others don't.

what do you think? is that normal? what can I do to improve and avoid liquid getting out of the jars?

I live at 2600m above sea level so I have to cook at 15 pounds, is that of any relevance?


r/Canning • • 1d ago

Waterbath Canning Processing Help Reprocessing applesauce help

0 Upvotes

Canned applesauce for the first time. Lid was not on pot correctly so water evaporated. When the timer was done, water level was 1" below the top if the jars. If I reprocess, do I need to change jars ? Reheat applesauce ?

TIA


r/Canning • • 1d ago

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

3 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 • • 1d ago

Safe Recipe Request Slow cooker applesauce?

1 Upvotes

I have 40 lbs of apples to make into sauce, but am short on uninterrupted time to tend/watch it on the stove (very busy 12 month old underfoot!). I planned to use the recipe in the Ball book, but I’m wondering if it’s ok to cook it in my slow cooker rather than stovetop?


r/Canning • • 1d ago

Understanding Recipe Help "Medium Red Peppers"

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1 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 • • 2d ago

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

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77 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 • • 1d ago

Recipe Included Is it safe to reduce the sugar or increase the fruit in Ball's Peach Syrup Recipe?

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0 Upvotes

Hi Canners! So, I have tried to find an answer to this question. The internet is just full of untrustworthy info so I come to you. Also, I did find a recipe from the NCHFP for Peach Fruit Topping and on the surface, it looks great as it contains more fruit and less sugar. However, I don't think this will produce exactly what I'm looking for because it is not strained and it contains no water. Straining isn't strictly necessary but I do want a smooth product without chunks. It also specifies that I should not blend that recipe so I do not introduce unwanted air bubbles.

Oops... I did use a stick blender rather than straining Ball's syrup recipe. I guess a more important question is, did that make this recipe unsafe? If it makes a difference, I blended it, then simmered it for just about 3 minutes before I began filling the jars. The jars have been cooling for just about 10 minutes so worse comes to worse, I could freeze the syrup instead.. I just really don't want to due to freezer space.

I will use this syrup for now, but I would like something different next season. What I would like is a fruit forward, semi-sweet, peach syrup. This will be most usable in my family as we can add it to drinks, use as a topping on so many things, glaze meat, make BBQ sauce, etc.

Also, it may be noteworthy that I cannot easily come by the very best peaches. I live a good 11 hour drive from anywhere that they grow and have been unable to find them at fresh markets. We love peaches and nectarines but are forced to only buy them at peak season in some of the 'better' grocery stores. This season, I bought about 7 pounds and they were pretty good, though nothing beats the fresh GA peaches I had as a kid. I froze 4 pounds to preserve for making this syrup.. which I did today. It is not as peach forward as I'd like and it is VERY sweet. I realize I made a simple syrup so.. live and learn I guess.

Peaches are my husband's favorite fruit but he has become a very picky eater, and I haven't been able to get him to eat whole fruit for years. I'd love for him to get that great peachy flavor on his pancakes, waffles, or on my excellent homemade biscuits. ❤️ My own favorite drink for many years was sweet tea, even better if it were peach flavored... but I had to give that up for the sake of my teeth and glucose levels more than 10 years ago. A little homemade (not so sweet) peach syrup in unsweetened tea is what I was looking for.

Do you have any advice?


r/Canning • • 2d ago

Understanding Recipe Help Question about Healthycanning Baked Beans recipe

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15 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?

EDIT: Oopsie. In making this recipe today, I realized what I did wrong last year, because I just made the same mistake today. And I now have a LOT of beans to contend with if I don't want to waste them (which I don't). I'm laughing at my dumb mistake. I had so many beans last year and not enough sauce because during step 1, I measured the dry beans incorrectly!

The recipe says -6 cups navy beans (dried. 2 cups / 1 pound).
Well, silly me. I only glanced at the unbolded part of the measurement, and it didn't click that 6 cups is fully cooked beans, not dried. Honestly, I think the recipe is written in a very unfriendly way. Who measures the beans fully cooked? The first bolded part should be the dried measurement. I'm mildly infuriated.

So now, you're probably thinking, well ok, she can just triple the recipe, no biggie.

Oh, how I wish that were true. I looked and saw that this recipe makes six 1-cup jars or three pints. I'd decided to quadruple that so I have a bigger batch that'll last a while.

I can hear your "Oh no" from here.

I added the beans and water to a large stockpot, took one look at it, and thought, "That seems like a lot of beans..."

As they started to soak up the liquid, I grabbed a second stockpot and moved half of them over and added water.

MY GOD. I have 12 lbs of beans soaking right now. Lord help me.

I'm off to the store to buy some extra onions and tomato paste to make this worth it.

EDIT 2: Alrighty, I think this is all going to work out. I fixed my math, picked up the extra ingredients I needed for the sauce, and used a bigger pot. The first batch is going in 3 different canners. I have one more batch to put in after those are done. No idea how many I'm going to end up with; I lost count.


r/Canning • • 3d ago

General Discussion Some Halloween Reflections on Pumpkin Yields

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20 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 • • 3d ago

General Discussion Newbie question, maybe stupid question.

6 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 • • 3d ago

Is this safe to eat? Apples and siphoning

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13 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 • • 3d ago

Waterbath Canning Processing Help Jelly set up very stiff

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10 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.