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Questions tagged [canning]

Questions about food being preserved into glass jars, metal cans, or other air-tight containers using a variety of heat treatment steps to ensure a reasonable level of pasteurisation and/or sterilisation

Topics accepted within this tag:

  • Problems with preserving recipes, especially if the recipe can be referenced

  • Techniques for using preserving equipment

  • Selection of preserving equipment

  • Selection of preserving containers for food types - glass, metal, other

Topics not accepted within this tag:

  • Discussion on the health benefits of preserving

  • Discussion on the shelf life of preserved foods

300 questions
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3 answers

Does cooking food inside a pressure cooker and then leaving it locked preserve it similar to canning?

I have made some food in my pressure cooker and left it in room temperature for over a week. When I opened it, there was no mold. I threw it out because it might have still been bad, but this got me thinking. Since canning is basically cooking food…
MatthewRock
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1 answer

How prevalent was foodborne botulism before stricter food safety guidelines?

Nowadays, foodborne botulism seems to be quite rare, even from potentially high-risk things like home canned goods. (The CDC Botulism Surveillance reports indicate on the scale of tens of confirmed cases per year in the US.) But I can only assume…
Cascabel
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7 answers

How can I get a very thick or viscous paste (e.g. caramel, ganache, thick mayonnaise) into small-necked squeeze bottles without heating it up?

This is a problem I've had with several types of food/sauce. I'll make a big batch of something like a thick caramel sauce or an extra-thick mayonnaise and it simply won't pass through a funnel into a squeeze bottle. I want to be able to transfer…
WackGet
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21
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1 answer

What to expect from canned bear meat?

I aquired a can of bear meat from Finland. I'm not sure what to expect of the contents of the can. Will the meat be pre-cooked? I can find some ideas online for preperation of fresh bear meat, but grilling probably doesn't translate too well for…
Martijn
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19
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14 answers

How can I separate the lid from a can that has a pull-tab/ring without flinging food everywhere?

When I try to separate the lid from a can that has a pull-tab, the moment the lid separates from the can, the lid flings food everywhere. It's not always a lot, but it goes far because the lid has so much spring-tension. I'd keep the last bit of the…
Bort
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18
votes
2 answers

What is the code for the rings stamped on the top of canned food?

Canned food has rings stamped on the lids. What (or who) has the code? Here is a photo with crab and tuna tops. Maybe the better word would be "indentations"?
deane nelson
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17
votes
5 answers

Does this tinned food need to be cooked?

I’ve recently started eating tinned chicken, specifically the Roberts brand as shown below. When I open the can, it looks kind of raw and kind of tastes as such, but that could just be my imagination. I have tried to contact the manufacturer for…
James Wilson
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16
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2 answers

Why peel tomatoes?

Everyone seems to think it is necessary to peel tomatoes before canning or freezing them. Since I do not peel tomatoes when I'm cooking with them (soups, salsa, etc.), I'm wondering if I can freeze them without peeling them. Does freezing/canning do…
Rebekah
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16
votes
10 answers

Is there a way to safely can pesto sauce?

I grow basil and I have enough that I would like to can some pesto sauce. I have tried to find a way to can it but I keep hitting a wall. I would like to give a few cans of pesto to people for Christmas. Can anyone help me?
theresa
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16
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3 answers

What is the process of storing food in toothpaste'ish tubes?

You know what I'm talking about, these food tubes that are popular for tomato paste, or pesto. Searching for 'food in tube' or 'how to make your own tomato paste in tube' yields mixed results, so I'm wondering if I'm even calling this preservation…
J.Deschenes
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16
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2 answers

Repackaging shelf-stable products

For products that start out shelf stable but are labeled "refrigerate after opening," I'm wondering if it's possible to safely return them to their shelf-stable status to save refrigerator space. A few specific products come to mind: olives, maple…
Jeff Axelrod
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15
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5 answers

Why do you need to peel peaches to can them?

I am going to be canning a bunch of peaches tonight, and I know that you have to peel them first (and I know how to do it easy), but I got to wondering, why do I have to do it? I have always done it. That is the way it was taught to me by my…
Vaccano
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15
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7 answers

Is the double boiling canning procedure really necessary?

It seems the usual procedure is to sanitize cans and lids by immersing them in boiling water, to fill the cans, and then to cap them and boil for a few more minutes. If I sanitize a can and then fill it with boiling jam, and cap it with a sanitized…
ThePopMachine
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14
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4 answers

Why do home-made pickles float in the jar, but commercial pickles don't?

I make a lot of home-made pickles; mostly pickled onions/shallots/cucumbers. I use a cold process and I don't pre-brine. I notice all of my pickles always end up floating to the top of the jars, even after months of pickling. This is very annoying…
WackGet
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14
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2 answers

Can you can items using a deep frier instead of a pressure canner?

In this question about canning safety, the answer states that the only safe way to can low-acid foods is by using a pressure canner, since only they will be able to reach the temperatures required to sterilise the food. However, I can think of…
nick012000
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