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Questions tagged [vacuum]

57 questions
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How does vacuum packing affect safe meat storage time?

I recently bought some vacuum-packed pork back ribs, with a sell-by date more than two weeks after I bought it. I don't think I've ever seen a date that far out on meats and I'm not sure how to interpret it. I assume it has something to do with the…
Andrew
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How does vacuum sealing something in a mason jar help?

I use a vacuum sealer for sous vide cooking, and also have a lot of mason jars I use for juice glasses, storing leftovers, etc. I noticed a mason jar attachment for my vacuum sealer, but I'm a little confused as to the science and benefit behind…
profesor_tortuga
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How do I reconstitute vacuum sealed Tibetan Barley Wine?

Last month I stayed in a homestay in Sichuan Province that was owned and run by a Tibetan family. At dinner they served an amazing barley wine made from Tibetan barley that they called "qingke" barley. Though it wasn't as syrupy, it tasted a lot…
borrascador
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If a large can is divided into smaller containers, is it still shelf stable?

Everyone knows that buying in bulk usually saves money. My question involves buying and saving bulk canned veggies and items of that nature. Can you divide a bulk or industrial size can of say green beans or nacho cheese into mason jar, vacuum seal…
Queannah
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Vacuum Seal Meats with Bones that could be sharp

I am interested in vacuum sealing things like bone in pork chops and t-bone steaks for sous vide cooking. Is there a technique to keep the bones from puncturing the bags?
Roger
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Cleaning plastic bags used for sous vide

I am using this kind of vacuum bag for sous vide. They work perfectly but recently I have been having a problem cleaning them. I let them sit for a few days after using them without cleaning them, because I was too lazy - no excuses here. Then I got…
J. Doe
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Vacuum-packed cheese question (botulism)

Vacuum-packed cheese, stored in refrigerator for awhile (2-3 weeks), then placed in freezer. Cheddar and Provolone. Any risks, especially in regards to botulism...opinions sought. Never heard about botulism being a risk in vacuum-packed food until…
Bluebird
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Ziploc vacuumed bags expand in sous vide

I had an issue yesterday when I tried to cook some root vegetables in my sous vide supreme. I chopped them to roughly 1" lengths and placed them in a few quart Ziploc freezer bags and vacuumed them using a ThriftyVac. After just a few minutes in my…
anton2g
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Is it safe to vacuum seal shredded Parmesan?

I was trying to think of a way to more efficiently storing parmesan for quick access. I realized I could shred a batch and vacuum seal it in a jar to better preserve the flavor after shedding. However, I am aware of the risk of botulism with high…
Jeff Axelrod
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Vacuum sealer exclusively for canning jars?

I'm looking for a vacuum sealer just to vacuum seal canning jars. Presently I use a traditional vacuum sealer for bags that has an accessory port. It's bulky and because it's designed for bags as well requires you to press some latches to seal the…
Jeff Axelrod
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Out of Date Vine Leaves - are they safe to eat?

I bought vacuum packed vine leaves quite some time ago. Stupidly didn't get round to using them so they are still in the fridge. They are well passed their sell by date of March 2011. Should I just bin them or do you think they are still fine to…
Kate
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What makes vacuum fried food retain and concentrate the food's flavor?

I recently tried some vacuum fried banana chips and pineapple chips from Trade Joe's. They were delicious. Does anyone know why this process helps the food retain and even concentrate the flavors? According to the article, since the frying…
milesmeow
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Can exposure to carbon dioxide spoil a lactic fermentation project?

I’m using lactic fermentation to make a batch of sauerkraut, fermented berries, etc. Rather than going the glass jar route I’ve placed everything in a vacuum sealed bag. This is a technique which Noma uses. Over the next few days the contents will…
Halaster
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Are there disadvantages to storing bread in a vacuum box?

I love fresh bread, and when I buy it I store it at home in a plastic bag. After 2-3 days it has probably lost about 60% of its overall quality. I've been using some vacuum storage bags and found that the bread can be great up to a week later! This…
Behacad
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Food Pre-Packaged in Vacuum Bags

I often purchase chicken and fish that have been vacuum packed at the factory. Is the food, never having been exposed to air, susceptible to botulism or other anaerobic organisms? Is it best to sous vide these in their frozen state?
fhungolfer
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