Questions tagged [food-preservation]

Questions about LONG-TERM food storage such as canning, pickling, freezing, and drying.

Filter by
Sorted by
Tagged with
67
votes
1answer
67k views

How long can I store a food in the pantry, refrigerator, or freezer?

How do I know if a given food or ingredient I have is still good, or if I should discard it? How can I best preserve a food or ingredient? This broad question is intended as a "general reference" ...
64
votes
9answers
602k views

How dangerous is it to refreeze meat that has been thawed?

I've often been told by people that I shouldn't refreeze meat (particularly hamburger meat) once it has been thawed. However, this seems a little silly to me. I can't imagine how meat that hasn't ...
24
votes
5answers
9k views

Can one preserve food by periodically heating it?

I get that keeping food temperature low will slow down chemical reactions and preserve food, but sometimes my sister preserves food by heating it every 6 hours or so (up to 1-2 days). Does this help ...
11
votes
5answers
144k views

What is the ideal fridge temperature

I notice that in both countries where I lived the fridges are kept at 6 or 7 °C (43-45 °F). When it would be colder, people find their drinks to cold, when served straight out of fridge (especially in ...
24
votes
14answers
86k views

Making “long(er)-life” homemade mayonnaise

Most recipes I've seen for mayonnaise suggest that homemade mayo should be kept in the fridge for no longer than between 3 and 5 days. What techniques or ingredients can be used to increase the shelf-...
4
votes
3answers
5k views

Preserve cut potatoes

I am going to cut some potatoes tonight for a dish I am going to make tomorrow. Will keeping the cut pieces in water immediately after cutting preserve them? There are suggestions at other websites ...
9
votes
5answers
121k views

How long can you keep chocolate, and what is the best way to store it?

For instance, I have some bars of Valrhona I use for chocolate tarts and pastries, but I haven't been doing the dessert thing in a while. How long does chocolate last before losing flavor (or does it)...
9
votes
1answer
61k views

How long does it take botulism spores to germinate in the fridge?

Based on this question, I started wondering how long I could keep an anerobic food in the fridge before I have to worry about botulism colonization. 1 day? 3 days? 2 months? Clearly it's not a ...
3
votes
1answer
11k views

Can you preserve canned kidney beans so that they still have their shape?

I buy kidney beans in a can, but the amount is always too big. Normally, I throw away the leftover beans, thinking that freezing them will turn them into mush (thinking the water will expand and make ...
11
votes
5answers
33k views

Do tinned foods go off (stale)?

This morning I found a tin of baked beans with a best before date of August 2014. A colleague of mine told me that it's perfectly safe to eat, and that tinned foods never go off. Can this be true? Do ...
8
votes
4answers
2k views

What are the herbs that “dry” the best?

Some fresh herbs seem to retain their flavor better than others when dried; for example, dried parsley has very little flavor, but dried tarragon tastes reasonably close to fresh tarragon. Which ...
20
votes
9answers
173k views

How do I maximize the shelf life of my homemade hot sauce?

I am planning on putting this year's crop of hot peppers to use by trying my hand at making my own hot sauces. I've never tried this before, but I've found a number of recipes on the Internet. ...
11
votes
9answers
244k views

Do you have to refrigerate Pickles?

So last weekend the wife and I got a huge jar of pickles at Costco. The thing is bigger than a gallon of milk (the wife really loves her pickles). There really isn't any room for it in the fridge, ...
5
votes
2answers
4k views

How to store homemade bread?

I made a bigger batch of bread than I was initially planning on, and I don't want it to go bad before I get a chance to eat it. Having it go stale isn't an issue (french toast, bread pudding), but ...
17
votes
3answers
4k views

What's the difference between jam, jelly, and preserves?

I assume the difference in name is due to their cooking processes, but am unsure what exactly makes them different.
13
votes
2answers
9k views

How long could a meat-based broth be held safely near 180F/82C?

This question is the flip-side of the commonly asked food temperature safety concerns. I'd like to know, if a meat-based soup stock (chicken/pork/beef/etc) were to be held constantly at a safe hot ...
12
votes
3answers
9k views

Why do fridge temperature standards between US and other countries differ?

US recommendations always go for +4°C at most, and this would correlate with how the danger zone is defined in the pertinent literature. In Germany, most literature (and also the specification next ...
11
votes
5answers
7k views

Why prevent apples from turning brown?

It's somewhat well-known that applying an acidic solution to sliced apples prevents them from turning brown as quickly. I believe that the primary motivation to prevent the "browning" is aesthetic: ...
5
votes
3answers
52k views

homemade chilli oil

I am making chilli oil using light olive oil, crushed chilli, dried garlic, dried fennel seeds and parsley. I have been making this for years. I am concerned about this Botulinum business. Should I ...
19
votes
13answers
106k views

Can I make pickled eggs that don't require refrigeration?

This time of year I have a ton of extra eggs. In the winter I have fewer. I have, therefore, been experimenting with egg preservation techniques. I like pickled eggs a lot. They aren't very versatile ...
21
votes
6answers
12k views

Are any retail vacuum-sealing systems worth the expense?

Living alone means that my leftovers tend to go a pretty long way, and I don't end up using raw ingredients as quickly as the supermarkets expect me to. For a while I've been considering investing in ...
12
votes
6answers
5k views

Can I separate garlic into cloves for storage?

I bought jar for garlic but it can store only two bulbs with most place being wasted. Can I separate bulb into cloves and store them? Or will it significantly shorten the lifespan of garlic? EDIT To ...
7
votes
2answers
3k views

How should I make jam out of coffee cherries or coffee cherry husks?

I would like to make a jam (or perhaps more like a preserve/conserve or even marmalade; see this question for distinction) out of either the entire, whole coffee cherry (a.k.a. coffee berry; beans ...
20
votes
6answers
12k views

Can I freeze Milk?

After a bit of miscommunication, my wife and I ended up buying 6 litres of milk between us. I don't really want to waste it, so I'm wondering if it's safe to freeze some of it and defrost and use it ...
18
votes
2answers
21k views

Why don't dry bread crumbs spoil, when bread does?

Why don't store-bought bread crumbs spoil? Can you make your own bread crumbs and save them for later use? Will homemade breadcrumbs mold?
16
votes
2answers
6k views

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 ...
13
votes
2answers
3k views

How to store garlic?

When I buy garlic, I normally put it in a bowl on the kitchen counter or in the pantry, and then pop off cloves as need. Sometimes, if the garlic has been around for a while, I find what looks like ...
8
votes
6answers
29k views

Minimum procedure for sterilizing mason jars for canning

My wife and I are about to do some tomato canning tomorrow. We have a bunch of mason jars that we didn't have time to sterilize. She thinks that just washing them in hot water is enough. After ...
7
votes
5answers
94k views

How to dry homemade pork sausages with proper humidity and temperature?

I am new to this and am attempting to dry some pork sausages. I was told to add a quarter pound of salt for every ten pounds of pork meat, which I did (I used ordinary table salt). I have the sausages ...
5
votes
4answers
8k views

How to make bread mould resistant?

With the bread I bake, they become mouldy within two weeks. With the bread I bought from the supermarket, usually whole wheat, I would have the loaf gradually consumed and by the 6th week, it would ...
1
vote
3answers
5k views

Cutting the stems of banana instead of wrapping them when preserving them

I am searching for a ways to preserve the banana, and most of the time they said that I need to wrap the stems in a plastic or scotch tape so the gas wont come, they said that this gas is the reason ...
7
votes
1answer
3k views

How to ship bread or bread dough?

I've been thinking about starting a boutique mail order dinner roll business. Dough While I'd really like to ship dough and allow customers to bake (per roll) at their leisure, I'm beginning to think ...
7
votes
2answers
337 views

How to determine if canning is safe?

How can I tell if it is safe to can a particular homemade sauce? Is it just a function of pH and technique (pressure vs boiling water) or are there any other factors in play? Specifically, I would ...
6
votes
1answer
11k views

Does canned tuna contain preservatives?

I want to know how the tuna can be kept for so long in a can. Do they use preservatives? Or is it just tuna and water (or oil or brine)?
6
votes
2answers
70k views

How long will fresh scallops keep in the refrigerator? [duplicate]

Today I bought one pound of fresh scallops from the seafood counter at the local market, but my dinner plans have changed - I am no longer planning to cook the scallops this evening and I don't ...
6
votes
1answer
12k views

How to remove individual steaks from a lump I mistakenly froze together?

I got a vacuum sealer and stored about 7 pieces of steak in 1 bag. I put it in the freezer and just now I decided to take out a couple of steaks to thaw out so I cut open the bag but all the steaks ...
5
votes
4answers
821 views

What flavorings do you use for sour pickles?

I'm making sour pickles (salt water brine, no vinegar) and do not have dill, so I've got garlic and black pepper. What other suggestions do you have for flavorings?
4
votes
2answers
429 views

What causes seals to fail when canning?

My husband made and canned pickles 1 week ago. Tonight he noticed the seals were popped on all but one jar. One other time the same thing happened when he canned green beans. What would be the cause ...
4
votes
3answers
7k views

How long can a bottle of self-made basil sauce last without rotting?

I made a bottle of basil sauce by myself last year summer. It composed of basil leave, extra virgin olive oil, pine nuts, garlic and parmesan cheese. It was kept in a glass bottle in the refrigerator,...
4
votes
2answers
12k views

can maple syrup be refrigerated after it was out for a few days?

I opened Adirondack pure maple syrup a few days ago. It didn't say to refrigerate, so I didn't. When I googled it, it said that it should be refrigerated. Can I still do that? If I may not use it ...
4
votes
1answer
223 views

Can I ferment pickles in the tropics?

I live in the tropics where the temperature mostly ranges from 28 to 33 degrees Celsius (82 to 91 Fahrenheit) or higher. I want to try my hand at fermented pickles but most sources seem to claim ...
3
votes
3answers
722 views

Pasta preservation

I have some extra pasta, cooked. I have no extra sauce to put the pasta in. What's the best way to preserve it so it lasts for a day or hopefully two without getting dry or rotten?
3
votes
1answer
3k views

Food safety of sauerkraut whose brine evaporated below surface?

We started a batch of sauerkraut about a month ago. We used the outer leaves of the cabbage to cover the shredded cabbage below. The cabbage was brined with adequate salt (about 2 tsp per pound). The ...
3
votes
2answers
3k views

First time canning…forgot to sterilize my jar. Advice please!

I made a jalepeno/banana pepper relish from my garden two days ago and have since realized that I was supposed to sterilize the jar before doing this. My fault for not researching enough at the ...
3
votes
3answers
10k views

What are the signs that indicate that raw honey has spoilt?

If the raw honey goes bad, how would I know? What should I keep on looking for? Floating fungus?
2
votes
1answer
6k views

How can I preserve refrigerated cashew / almond milk by at least 2 months?

How can I preserve refrigerated cashew / almond milk by at least 2 months? I tried citric acid, but a very bad taste and smell resulted. Does anyone know what can i use naturally to prolong the life ...
2
votes
2answers
102 views

Does anyone pre-juice their fruit juice for sale?

I would like to know if there are stores out there that that pre-juice their fruit juices on the eve of sale, perhaps for 24-hours only since juicing. Have they been successful? What are the methods ...
2
votes
2answers
139 views

What should I look for when choosing tomatoes for pasta sauces?

What factors should I take into account when selecting tomatoes for sauces? Background: I'm growing my own tomatoes, and I need to start germinating soon. Taste and production are my 2 first ...
2
votes
4answers
1k views

Can I prevent hot pepper sauce losing heat?

I regularly make a few different condiments with hot peppers: Pico de Gallo (tomato, onion, jalapeño, cilantro, lime, salt) Pepper Sauce consisting of habanero, garlic, lime, culantro, salt Variation ...
2
votes
2answers
656 views

Are there alternative ways to test fruit preserves for doneness?

I've tried twice to make fruit preserves using only the natural pectins in the fruit. The first time with plums where the jam was much to thick, and yesterday orange marmalade which came out tasting ...