
How do you open canned jars?
The reasons heat works are because:
- When heated, all matter (even canning jars and lids) expand
- Metal expands more than glass does, so placing heat on the jar lid is the best approach
- Heat the metal lid ring to help it expand and pop open
How to tell if a canning jar has sealed properly?
- Option 1: Press the middle of the lid with a finger or thumb. If the lid springs up when you release your finger, the lid is unsealed.
- Option 2: Tap the lid with the bottom of a teaspoon. A clear ringing sound means a good seal. ...
- Option 3: Hold the jar at eye level and look across the lid. The lid should be concave (curved down slightly in the center). ...
How to prep jars and lids for canning?
Steps For Preparing & Sterilizing Canning Jars
- Fill your canner with water –. It takes a while for a large pot of water to boil, so plan ahead. ...
- Add vinegar to the water (optional) –. After using canning jars a few times, you might notice a white film building up on them. ...
- Inspect the jars for defects –. ...
- Wash them in soapy water –. ...
- Rinse the clean jars –. ...
- Put hot jars into the canner –. ...
How long do you boil jars for canning?
- Wash all canning equipment in hot water with mild dish soap.
- Place lids and bands on a clean dish towel.
- Submerge jars in a boiling water bath for ten minutes.
- Leave jars inside hot water until ready to fill.

Can you use other jars for canning?
If you're planning on canning, you can reuse your purpose-made glass jars and screw bands, as long as they're in good condition. The metal snap lids, on the other hand, are made to be used once. Once the gummy, rubbery seal on the lid is heated and cooled, it can't make the same quality of seal again.
What can I use instead of a Mason jar?
Try glass cylinder vases, mercury glass and more instead. Planning a wedding or party? Try glass cylinder vases, mercury glass and apothecary jars instead.
Can you reuse store bought jam jars for canning?
The good news is that canning jars are fairly inexpensive and can be reused for years and years. Keep your jars clean and store them in a safe place where they will not be damaged in between canning sessions. The only piece that you will need to buy for the next round of preserves is the inner lid.
Can I use Ball jars for canning?
Ball jars have long been approved for pressure canning. The metal 2 piece lids that accompany these jars are also approved for pressure canning for home canners by the National Center for Home Food Preservation.
What is the difference between a Mason jar and a regular jar?
All Mason jars are not created equal. They are remarkably similar to commercially used jars, but the biggest difference is that real Mason jars have a wider rim that gives them a better sealing surface.
Can you use pickle jars for canning?
Clemson University says, Never use commercial jars such as mayonnaise and pickle jars for home canning. These jars are not very resistant to temperature extremes; they break easily. Also, lids may not seal on these jars because their sealing edge is rounded rather than flat.
Can you reuse lids and rings in canning?
If you have canning lids that you've already used, is it safe to reuse them again? The simple answer is no: Canning lids are designed for one-time use. Using them more than once may result in your jars not sealing properly.
Why do jars break when canning?
Sudden change in temperature create too wide a margin between temperature of filled jars and water in canner before processing. That leads to "thermal shock" in the glass jar. Food was packed too solidly or jars were overfilled. Then as the jars heat in the canner, their contents expand and the jar breaks!
How do you make homemade mason jars?
2:3513:1543 DIY Mason Jars Crafts Ideas - YouTubeYouTubeStart of suggested clipEnd of suggested clipCut out any shape you like and then stick them onto the jar add a ribbon to it and put a candleMoreCut out any shape you like and then stick them onto the jar add a ribbon to it and put a candle inside then you're good to go.
Do you have to use a Mason jar for overnight oats?
A glass jar is not the only option available for overnight oatmeal. Tupperware containers, plastic containers and a medium-sized bowl with plastic wrap also work well for soaking oats overnight.
How do you make glass jars at home?
1:217:10Glass Bottle from Scratch | How To Make Everything: Bottle (4/4)YouTubeStart of suggested clipEnd of suggested clipUsing a makeshift furnace. We had me add the sand and control the mounts. Then heated up to overMoreUsing a makeshift furnace. We had me add the sand and control the mounts. Then heated up to over 2,000 degrees Fahrenheit until it began to.
How do you make a Mason jar terrarium?
1:125:09DIY MASON JAR TERRARIUM - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou want to make sure that it's settling into all the corners. So that it acts as a full layer. AllMoreYou want to make sure that it's settling into all the corners. So that it acts as a full layer. All right next we have our cactus mix. Soil. So we're just lightly scooping. This in and patting.
Stop Before You Recycle Jars for Home Canning
Erin Huffstetler is a writer with experience writing about easy ways to save money at home.
Why Store-Bought Jars Are Unsafe
Grocery store jars that once held spaghetti sauce, pickles and other foods should not be reused for home canning. The glass is usually not as thick and this makes them more likely to shatter or explode when heated.
For Proper Canning
The good news is that canning jars are fairly inexpensive and can be reused for years and years. Keep your jars clean and store them in a safe place where they will not be damaged in between canning sessions.
Tips for Reuse
Instead of trying to can food with empty jars, use them around the house in other ways. They are perfect for storing many small things and allow you to see exactly what's inside.
The Problem with Reusing Glass Jars from Store-bought Products for Canning
You might feel tempted to reuse glass (or even plastic) jars that were leftover from items you bought at the store. However, there are two characteristics that a good canning jar must have.
When Old Canning Jars are Not Safe
Are there times when the recycled mayo, spaghetti sauce, or peanut butter jars are NOT safe? Sure. The quart sized mayo jars that many say “My Grandma reused these with no problems” are not designed to withstand the heating and reheating that comes with home canning food safely.
What does This Mean?
Do you need to throw away all your old jars that are from store bought products? I have a bunch of old mayo style quart jars that my home canned peaches look simply lovely in.
What About Lids and Bands?
You might be tempted to further cut costs by reusing bans or lids. However, not all are reusable. In most cases, the cover for a can consists of two pieces –a seal (the flat metal lid) and a screw band (the ring or band).
Rules to Remember before Reusing Glass Jars
If you choose to reuse jars from store-bought products, and wonder if it’s really safe, just remember:
Just Buy New Jars
The good news is that most canning jars are inexpensive and can be reused for many, many years. Regardless of whether you buy them new or you purchase them secondhand (you can often find them free at auctions, yard sales, or on auction sites like Craigslist!) they shouldn’t break the bank. Feel free to save your lids between canning batches, too.
Not for fairs or contests
Sadly, your product canned in such jars may not be eligible for entry into fairs or contests.
The reality in Australia and New Zealand
The reality in on the ground in Australia and New Zealand is this: that what Americans and Canadians pay for a dozen Mason jars, Australians and New Zealanders can easily pay for a single one, or two if they are lucky. Sic.
Summary of re-using recycled commercial jars for home canning
Many people like to try to re-use such jars for canning as a political or lifestyle choice in order to be more environmental. But, it’s important to remember, that probably more people do simply because they are on such limited budgets that they just cannot afford the cost of store-bought mason jars.
History
During World War Two, the USDA encouraged people to re-use jars from store-bought products owing to wartime shortages of glass. The various guidelines suggested were actually somewhat confusing, compared to the simplicity of just using the purpose-made mason jars now.
Further Reading
Peterson, Sharon. “ Canning Jars, can we use recycled ?” Simply Canning Blog post. Accessed March 2015.
Which Jars are Safe for Pressure Canning?
Pressure canning is a different preserving method than water bath canning, and not all jars are designed, tested, and approved for pressure canning. This post will discuss which jars are safe for pressure canning.
New to Pressure Canning?
If you are new to pressure canning we encourage you to read this article from NCHFP about how to get started with pressure canning.
Can I use empty mayonnaise and spaghetti jars as home canning jars
A common question is "Can I use empty mayonnaise and spaghetti jars as home canning jars, if the rings and lids from Ball jars fit?
The short answer is, yes, if the lids and rids fit and the jars are sturdy enough
Some commercial product pint- and quart-size jars can be used with two-piece rings/lids for canning acid foods in a water bath canner. I've used them for decades, myself. Here's what you need to know:
These DON'T work well when reused as home canning jars
Thinner walled jars like those used in mayonaisse, like "Miracle Whip", have more seal failures and jar breakage. These jars have a narrower sealing surface, are tempered less than Mason jars, and may be weakened by repeated contact with metal spoons or knives used in dispensing mayonnaise or salad dressing.
These DO work well
The "Classico" brand spaghetti jars hold up VERY well - I don't think I've ever had one break, and I've been using them since the 80's.
Send me your feedback about other jars that do or don't work well!
Click here to send me your feedback about jars that worked or didn't work for you!
1. The Canning Pot
Odds are, you likely remember those old graniteware or enamel canning pots from your grandma’s kitchen. While they are designed to be big enough for a bunch of jars and tall enough to hold enough water for water-bath canning, you do NOT have to have a special canning pot in order to water-bath can.
2. The Canning Rack
Because you are putting glass jars on the bottom of a pot with a strong heat source underneath, a rack is a crucial piece of equipment in your canning toolkit. Otherwise, you’ll be dealing with broken jars and a major mess.
3. Canning Tongs
You’ll learn quickly that canning tongs (aka jar lifters) are one tool that you don’t want to be without, as it’s not exactly easy to lift a boiling-hot, wet, slippery jar from a pot of water with your bare hands. However, if you don’t have a jar lifter yet, you can improvise with a regular pair of tongs from your kitchen.
4. Canning Funnel
Canning funnels are designed to fit snugly into the mouth of both wide and regular jars to prevent spills. They come in plastic or stainless steel and aren’t expensive– however, what if you are ready to tackle your first canning project and don’t have one?
More Canning Tips
My Learn How to Can ebook and videos will make canning quick and easy.
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