social

Canning in the Oven?

I need to know about canning in the oven. I have everything but the how long to leave in the oven? I know the temp is 200 just don't know how long to leave in the oven.

Advertisement



Lynn from Sarepta, LA

Add your voice! Click below to answer. ThriftyFun is powered by your wisdom!

 
September 30, 201516 found this helpful
Best Answer

I know this thread is a little old but I thought it worth a comment anyway, particularly as it still forms a reference to those looking for information.
Firstly, I can't possibly see why food in a glass jar which is placed in an oven for long enough won't reach the desired temperature throughout. If I thought that it wouldn't, I'd never eat a roast chicken ever again !!! I'm a physics teacher and heat is transferred if there is a gradient i.e. like water, it will "flow" either up or down with time and temp difference. The bigger the temp difference the quicker it will flow. You need to realise that we are talking about heat flowing through the liquid inside the jar and not the air in the oven. Heat transfer through the air in the oven is irrelevant as it is already at the desired temperature which is then maintained by the elements.

Advertisement


Secondly, submerging the jar makes no difference to air bubbles rising. They will rise in an oven just the same as a water bath because they are contained within a jar. What's outside the jar (water or air) is again irrelevant.
Thirdly, if the lid isn't sealed the jar is NOT going to explode, trust me !! Why on earth would it. Glass is red hot when it's made in the first place and would only break in an oven due to either high pressure inside (if the lid were sealed) OR if the glass was thick and it was unevenly heated very quickly (thermal shock) i.e. if the inside surface was much colder than outside surface which would cause uneven expansion within the glass itself.
I do understand that some people might not follow the instructions properly and that Botulism etc. therefore could be an issue BUT that's the same situation whether the jar of food is placed in a water bath or an over.
Advertisement


Sorry to disagree with you all but if you are going to quote physics please get it right.

 
August 5, 20172 found this helpful

I have done some oven canning myself.
So far only with green beans and I have had no problems!
Raw Green Beans, to fill 1 quart size jar
Add to each jar:
1tsp. salt
1Tbls. Size raw bacon
1/2cup water
Put lids on jars and place in oven. Bake 3 hours in 250* oven.Turn oven off and allow to cool before removing jars.

I would like to use this method for more items.
Does anyone know how to do sweet corn this way?

 
July 9, 20191 found this helpful

I have canned homemade banana bread in canning jars in the oven and I take them out and put the lids on and they seal instantly! We have done this over and over and the banana bread remains excellent in flavor and consistency.

Advertisement

I just follow the banana bread recipe and it all comes out great! Love canning this way.

 
August 12, 20210 found this helpful

Thanks soo much for this scientific clear information!!

 
June 15, 20070 found this helpful

Oven-canning is extremely hazardous. The oven canning method involves placing jars in an oven and heating. In oven canning, product temperatures never exceed the boiling point because the jars are not covered. It is, therefore, not safe to use for low-acid products (e.g. meats, most vegetables) which require temperatures higher than 212 F.

Advertisement

Because this process fails to destroy the spores of Clostridium botulinum, it can cause the food to become toxic during storage. Also, canning jars are not designed for intense dry heat and may explode resulting in serious cuts or burn

 
October 18, 20172 found this helpful

So you are saying we should not eat food prepared in an oven because it is not safe? I have to disagree. Typically, safe serve temperatures are 180 degrees. If you are heating to 200, you are destroying the bacteria, and you are sealing before the jars cool down. If you use the proper tools for tightening the jars, they will remain sealed until you break the seal, unless you have foolishly reused your lids.

Advertisement

The rubber ring will seal perfectly on the one time use, your food will be fine. I was raised in my grandmothers home where she always canned in the oven. I an in my 60's with no issues due to improperly canned foods. I have had more problems with store bought canned goods.

 

Gold Feedback Medal for All Time! 696 Feedbacks
June 15, 20070 found this helpful

I agree with the other poster. Do not try it. It's not safe. If you read in the Ball canning book it will tell you that it's not a safe or approved method of canning. I have always done the boiling bath method on top of the stove.

 
By Marlene (Guest Post)
June 15, 20070 found this helpful

I agree with the above posters - DON'T DO IT!!!!!!! It is extremely dangerous. My mother tried it with tomatoes once - I threw them out. It's just not worth the risk!! A temperature of 200 is NOT hot enough.

 
By Mary Ann (Guest Post)
June 18, 20070 found this helpful

I do agree with the above posts. I have heard about canning in the oven but want to be sure of tried and true methods of canning. It can harm you or the ones you love. Better safe than sorry.

 
By lynn (Guest Post)
June 18, 20070 found this helpful

I want to Thank Everyone for their responses and i will never do any canning in the oven. I will stick with on top the stove cooking.
Let me THANK ALL OF YOU again .
LYNN

 
August 2, 20116 found this helpful

I have canned in the oven for decades. I have never lost a jar of food by doing so. The oven is 200 degrees and I make sure that each jar of tomatoes or beans, etc., is boiling and bubbling before turning the oven off. Prepare your jars, lids, and rings by first boiling them. They need to be hot when filled as you first blanche your vegetables for 3 minutes (then immerse tomatoes in a cold water bath - ice water, preferably- to get their skins removed). I bake the jars for 2 hours and keep watch to be sure each bubbles and boils. Leave 1" or more at the top for this when loading the jars. I remove the jars with canning tongs to towels on the counter and gradually tighten the lids as the jars cool. With green beans, I add lemon juice for acid in each jar. I have used the big canning water bath pot method and it ruined the top of my stove in a previous house as the pot overhangs the burners on the electric stove and ruins the porcelain around each burner. I will not use this method as I have a quartz glass top induction stove, which is gourmet quality. The oven canning method has always been perfectly safe for me.

 
June 25, 20171 found this helpful

So you put the lids on when in the oven

 
June 25, 20170 found this helpful

Kandi

 
July 9, 20192 found this helpful

I heat the oven to 225 degrees. 212 is boiling here in the US, so it's getting hotter than if you water bath canned.
Just a note, if you leave it in the oven at that heat for too long, some of the contents of the jar will boil out, creating a mess AND you'll get to start over with the canning process. You don't want a seal with food under it.
I've been oven canning tomatoes, salsa and apples for years. No one has died or gotten sick.

 
July 9, 20190 found this helpful

Whoops! I forgot to actually answer your question.
I do start with hot jars, boiling salsa (or whatever) and sterile lids/rings. All the jars go on a cookie sheet in the pre-heated (225) oven. Set the timer for 15 minutes, turn the oven off and leave everything for a few hours. I've never had one that didn't seal. If you do, pop that one in the frig to eat first.

 

Add your voice! Click below to answer. ThriftyFun is powered by your wisdom!

 
In This Page
< Previous
Categories
Food and Recipes CanningJune 14, 2007
Pages
More
👔
Father's Day Ideas!
🌻
Gardening
👒
Mother's Day Ideas!
Facebook
Pinterest
YouTube
Instagram
Categories
Better LivingBudget & FinanceBusiness and LegalComputersConsumer AdviceCoronavirusCraftsEducationEntertainmentFood and RecipesHealth & BeautyHolidays and PartiesHome and GardenMake Your OwnOrganizingParentingPetsPhotosTravel and RecreationWeddings
Published by ThriftyFun.
Desktop Page | View Mobile
Disclaimer | Privacy Policy | Contact Us
Generated 2024-05-01 10:20:06 in 5 secs. ⛅️️
© 1997-2024 by Cumuli, Inc. All Rights Reserved.
https://www.thriftyfun.com/tf19564724.tip.html