r/Canning • • May 26 '26

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

307 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

General Discussion District fair sweep!

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• Upvotes

Yeeeeeehhhaw y'all, I wasn't expecting quite this many ribbons. It seems like a lot of folks took the year off with how horrible our garden year went. Im looking forward to more competition next year!


r/Canning • • 2h ago

Is this safe to eat? My grandfather canned this venison in November of 2024. Is it safe?

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23 Upvotes

I’ve never had a home canned product so idk what to look for… forgive me if the answer is obvious

The top is sealed and the button is down. I’m not sure what the little white shreds are… my first guess was mozzarella cheese but idk why he would put that in there.


r/Canning • • 14h ago

General Discussion Tips and Tricks I learned this year after starting canning again after 30+ years.

45 Upvotes

Recently retired. No expert here but I did can about 150 jars since August 1. Hubby has a big garden. Now to get some shelves to store them all as he is sick of looking at dining table and chairs stacked. Too bad they cannot go in the garage but will freeze here in Massachusetts. Somethings I learned this year from this sub and a FB group and authorized websites and books. I water bathed and pressure canned in my old (1990) Mirro 12 qt.

Setting up an assembly line is important to me. I work left to right to the stove.

  1. I have an old thick aluminum cookie sheet I use next to the stove to sit the hot jars on while filling. PLUS reduce the mess on the counter.

2, I have an old thick placemat next to the cookie sheet that I sit the hot pan on while filling the jars. PLUS reduce the mess on the counter. Use other placemats for setting jars out of the canner.

  1. Lids and bands in a small pot of very hot water. I know you do not have to boil them anymore but I like my lids hot. Saw a tip it helps to soften the rubber.

  2. Hunt thrift stores. This time of year many yard sales etc. FB marketplace. Maybe even some jars!

  3. Look for another pot for waterbath. WHY?? Today my old Graniteware canner sprung a tiny pinhole size hole in the bottom!! I checked the water temp and it was almost empty! No wonder my socks were wet! Luckily I was just canning jelly today that fit in my pressure canner.

  4. Of course follow tested approved recipes. Read them through more than once. Print them out if you can both for checking off steps/ingredients and for making notes. I started a binder for them all this year. Make sure to write down WHAT you are making and from what source. DO NOT count on memory!! Especially with similar items like Salsa (I made 3 kinds). Label as soon as possible even just writing on top of lid what is in jar. MAKE SURE TO NOTE HOW MUCH THE RECIPE ACTUALLY MADE!! As recipes are all over the place with amount results.

Get a NOTEBOOK! FOR NOTES. Keep a MASTER list of how much produce used as you go along. This helps in planning what to plant next year as well. Example I needed about 25 pounds of red peppers for what all I wanted to make. Had to buy quite a few as we only planted green. Same for hot peppers if you plan on making any salsas.

  1. Some of my canning excursions started with me prepping late afternoon and making the next day. When possible and practical, I used some of my quart jars to mix together the liquid ingredients needed, using my fridge containers for veggies etc. I love rubbermaid takealongs that hold 4 cups as they are flat and stack in fridge. As prepped, Using my printout to check off each ingredient.

  2. BIG one cannot double jam/jelly recipes with pectin. To make double use 2 pots at the same time to make 2 batches.

  3. Look for discounts on canning supplies now. My grocery (Shaws and Stop and SHop) both had some markdown jar prices. My ACE Hardware has been the best price and they have BALL lids on sale for best price.

  4. FREEEEEEE BOOKS!! Archive.org has a couple BALL books for free and you can download them.

2017 Ball Canning Back to Basics Internet Archive: Digital Library of Free & Borrowable Texts, Movies, Music & Wayback Machine

2016 The All New book of Canning and Preserving The All New Ball Book Of Canning And Preserving: Over 350 Of The Best Canned, Jammed, Pickled, And Preserved Recipes : Ball Home Canning Test Kitchen : Free Download, Borrow, and Streaming : Internet Archive

2006 Ball Complete Book of Home Preserving 2006 JK Ball Complete Book Of Home Preserving : Free Download, Borrow, and Streaming : Internet Archive

2004 Yes old but can be used to compare to new recipes you want. ball-blue-book-guide-to-preserving-2010 : Free Download, Borrow, and Streaming : Internet Archive

The USDA guide can be downloaded in sections from the website. Choose those you want/need.

Complete 2015 revision here to d/l Complete Guide to Home Canning (2015 revision) : US Department of Agriculture : Free Download, Borrow, and Streaming : Internet Archive

Extension services have sooooo much info. Food and Nutrition | NDSU Agriculture

Oregon State University Extension Service Salsa recipes for canning | OSU Extension Service

WHAT TIPS AND TRICKS DO YOU HAVE?? HAPPY WINTER! Although I plan on canning those recipes using canned store bought tomatos! and other stuff!

Also I got some plastic totes to store all my lids and bands. Also was informed REGULAR size lids are way cheaper than WIDE mouth lids. I use both kinds depending on recipe but good to know.


r/Canning • • 6h ago

Prep Help Tomato sauce question

5 Upvotes

Hello all. This summer I have been saving all my tomatoes in the freezer after coring them and last night following into this morning I finally thawed them all, peeled the skins and processed them into 27 cups of tomato sauce. I'm following the Ms. Wages tomato sauce recipe which calls for 10 cups per packet. Would it be safe to use a commercial plain tomato sauce to make up the missing 3 cups to make 3 full batches? My husband thinks I should just add a little more than half from the third packet but I don't want to rid the acidity levels being messed up. My other idea would be to process 3 more cups of whole tomatoes but I already cleaned up from my big processing this morning and I don't have the time for that. I plan on water bath canning. Thoughts?


r/Canning • • 5h ago

General Discussion Smokey Applesauce - Now what?

3 Upvotes

So I made my first batch of applesauce last week using our Honey Crisp apples. The batch turned out fantastic. Today I made my second ever batch using our Winter Banana apples. This experience was far different.

During the cooking process, I used a different pot (stainless steel) with 3/4 cup of water in the bottom, about the same as my first batch which was done in a nonstick pot. Unfortunately, the apples at the bottom badly burned in the bottom of the pot. While I was able to save 5 jars of applesauce which tastes great but clearly smokey. Questions:

  1. Anyone else done this before and did you have any issues eating it afterwards? I’m still completing the canning process now and plan to save the jars.

  2. Any ideas for other uses of the smokey applesauce? I was debating making some barbecue sauce with part of the batch. Thoughts or recipes appreciated :)

Don’t be too hard on me. It’s bad enough I ruined a pot during the process! Thanks in advance!


r/Canning • • 8h ago

Equipment/Tools Help Small batches

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5 Upvotes

So I always thought we could canned with a water bath at 100 degrees Celsius but I just learned it was kind of wrong.

I’m looking at pressure cooker for canning but those are big and expensive. I don’t have that kind of space for that tool or for a lot of canning.

I only do small batches of vegetarian spaghetti sauce, vegetables potage and like apple sauce or other fruit related canning.

Do you know a good small canning pressure cooker?

Thanks!
*picture of my squash potage going in the freezer😅


r/Canning • • 18h ago

Is this safe to eat? Giant air bubble

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28 Upvotes

I canned a bunch of apple butter yesterday following the Ball "fruit butter in 5 easy steps" and when I went to check the seals this morning this one can has a giant air bubble at the bottom that wasn't there before. It has a good seal otherwise, just a massive air bubble 😂

Is this safe to keep on the shelf or should I use it now?


r/Canning • • 23h ago

General Discussion Growing 8 hours ago, cooling down now

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49 Upvotes

First time canning Bernardin’s cream-style corn. It was harvested eight hours ago and is now canned and doing its 24 hour cooling. The only issue I had was with the lack of measurements in the recipe. It asks for medium corn cobs without any indication of what medium is. I don’t mind that I got 14 pints of corn canned but the recipe says one pint per four ears. I used 28 corn which by their mathing should have produced 7. It’s just sheer luck that I had enough spare jars and lids to use.


r/Canning • • 8h ago

Prep Help Instant Pot Apple Butter

2 Upvotes

Obviously, I’m going to water bath can on the stove. However, I really don’t feel like babysitting a dutch oven for a few hours. Can I make the Ball apple butter recipe in the Instant Pot? I was looking at some untested recipes that all seem to suggest around 15 minutes of pressure. Any tips?


r/Canning • • 10h ago

General Discussion Jugs for canning sweet cider

2 Upvotes

My question is about the safety of using beer growler type jugs for the canning of ciders and juices. I know you can purchase commercial juices in this style jug and can get new lids. Is it safe to use for canning of ciders (sweet not hard) in these containers (1/2 gallon or smaller) or should I stick to the 1/2 gallon mason jars?

Thanks


r/Canning • • 7h ago

Waterbath Canning Processing Help my grape jam is too runny

1 Upvotes

Came out of the canner late afternoon. Can I reboil it with more pectin tomorrow morning and reprocess it? Thanks.


r/Canning • • 12h ago

Safe Recipe Request ISO: Safe recipe for tomatillo enchilada sauce.

2 Upvotes

Not salsa for dipping chips, I'm looking for a green enchilada sauce made with tomatillos.


r/Canning • • 15h ago

Equipment/Tools Help Pressure canner gasket

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4 Upvotes

I have tried everything!! I have a National No. 7 and I know the part is the right one but I CANNOT get the ring to seat fully. This has been the best pressure canner imaginable for many years. I can’t bear to lose it!!! Thanks for any help!!


r/Canning • • 13h ago

Equipment/Tools Help PurMason on sale for almost half the price of Bernardin. Worth it?

2 Upvotes

I'm aiming to can 28lbs of tomatoes. First time canning. At the store I'm in, a dozen. PurMason jars are almost half the price of Bernardin. Is the quality difference significant?


r/Canning • • 1d ago

General Discussion What surprised you how often you use it?

59 Upvotes

Last year was my first time canning. I made about a dozen jars of pizza sauce from tomatoes in my garden.

I was genuinely surprised that we went through every single jar. And well before the growing season started again. Having sauce ready to go made homemade pizza night an easy dinner option.

This year I have done pizza sauce again, and added jam, salsa, and crushed tomatoes to my pantry. I’m looking for ideas of what else to can and make Winter me happy to have on hand.

I know the basic idea of ‘can what you will use’. I knew I would use pizza sauce but was shocked how much we went through and ensuring I put away even more this year.

What have you been pleasantly surprised with and now do more batches of, as you love having it on hand?


r/Canning • • 14h ago

Safe Recipe Request Recipes for non-alcoholic spiced apple cider?

2 Upvotes

I was surprised with whole bunch of wild apples yesterday and they aren't in the best shape for cooking so I was going to make them into cider.

I can't consume alcohol for health reasons so I'm looking for safe recipes I could follow to preserve the cider without it fermenting.

I've seen mention that apple cider can be processed similarly to the guidelines for apple juice, but since this is my first time attempting to make cider I would appreciate a recipe I could follow specifically for it.

I like a nicely spiced/mulled cider so bonus points for any non-alcoholic recipes for that, but I can also spice it myself so plain sweet cider is okay too.

Thanks in advance friends!


r/Canning • • 12h ago

Equipment/Tools Help Advice for purchasing as pressure cooker

1 Upvotes

It is difficult to find pressure cookers in my country, so I need to buy online. I have an induction stove, so the cooker must work with that. If I buy one I figure I might as well go big, so I think I want something in the range of 15-20 liters (or quarts, they are similar). It needs to be shipped to Europe, so if it is available on Amazon it is helpful.

Any suggestions? Or any advice on things to look for or avoid?


r/Canning • • 5h ago

Safety Caution -- untested recipe Scared My Canning Isn’t Safe

0 Upvotes

I just made and canned Apple Butter for the first time. I am now scared it isn’t safe. I’m giving it as gifts and don’t want to make people sick. I used the following recipe:

8 Honey Crisp / Gala Apples
1/3 Cup of White Sugar
1/3 Cup of Brown Sugar
0.5 TBSP Cinnamon
1 TSP Nutmeg
0.5 TSP Cloves
Splash of Vanilla

I water bathed canned 125ml jars for 15 minutes and then let rest in the canner for 5 minutes with the heat off. I’m at 1,600ft above sea level.

Is this safe?!


r/Canning • • 15h ago

Is this safe to eat? To Beet or not to Beet

0 Upvotes

Help. Just canned 10lbs of beets and the Mason Jars' lid, the little concave dome in the middle of it, didn't go downward, but when I press on it, it stays down. Are my jars sealed?


r/Canning • • 1d ago

Is this safe to eat? Backyard Concord Grapes

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7 Upvotes

Help! I picked my backyard Concord grapes, cleaned them, smashed them down in a pot and boiled them then strained out all of the seeds and the skins. I unfortunately left the pot out on the counter without realizing ans it’s now been 21 hours. Looks and smell smells great. Can I just re-boil again and add my sugar to make jelly? Or did I just lose this part of the harvest?


r/Canning • • 1d ago

Safe Recipe Request Aronia Berries

3 Upvotes

Aronia Berries

I am about to acquire 5lbs of aronia berries and searching for recipes. I found 1 on an unsafe recipes site and would appreciate a nudge in the right direction for a safe one. Any thoughts?

Thank you hive mind ✨️


r/Canning • • 1d ago

General Discussion Opinions on which apple varieties are best for canning pie filling?

11 Upvotes

Tl;dr give me your opinion on the best apple variety (controversial opinions very welcome). Talk is inspired by a silly little debate my sister and I are having.

Background context:

Planning to do an apple-pie making marathon over the canadian thanksgiving long-weekend. We'll be making full pies to freeze and canning additional filling for shelf storage that are meant to be given as gifts to family to eat over the holidays.

Having a debate with my sister about what variety of apples we should be buying from the local orchard. We each have our own personal preferences so will use a few varieties based on which are suited the application (freezing or canning)

My Opinions:

For all-purpose cooking I like Cortland apples the most, I find they really hold up their shape well after cooking, don't brown quickly after cutting, and have a lovely fresh tart flavour. Plus the ones you get from the orchard for cooking are super big which means less peeling/coring work.

For fresh baking I like to mix some McIntosh in with my Cortland apples since they become super juicy after cooking. They don't hold shape well so they aren't good for canning, just fresh/frozen pies. I also enjoy their flavour, somewhat similar to Cortland, tart and crisp. Also some of the cheapest cooking apples from the orchard.

Sister's opinions:

My sister meanwhile tends to think that Honey Crisp are the best variety to use, they are her favourite for eating and she likes how sweet and crunchy they are and finds they have almost a caramel like note to them even when fresh that just deepens with cooking. I personally think they are more expensive and best as fresh eating apples since cooking isn't how they shine most.


r/Canning • • 1d ago

Understanding Recipe Help Moms Apple Pie in a jar

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2 Upvotes

Can I omit the cranberries/ raisins? We just will not utilize it with this ingredients