/ck/ - Food & Cooking

vacuum seal

>>4129353
1. Vacuum. This means no Oxygen to oxidize stuff
2. It is sealed and them cooked making it sterile.

So no oxygen and no microbes to break it down.

>>4129360
>>4129355
>vacuum seal

if that's the deal, why do we still have frozen and canned food around?

>Vacuums

You guys are fucking retarded.

OP, they're most likely all dehydrated as well as vacuum sealed. Just sealing it won't do anything, as many bacteria can work anaerobically (A secondary method of respiration that does not require Oxygen). Some yeasts do this as well, most notably beer and wine yeasts. This is how you get alcohol.

>>4129380
It's already cooked.

>>4129353
These taste like shit. And if you eat these for a few days, you won't be able to shit.

enjoy feeling like a nigger is parked up your butt

>>4129380

Apparently you missed the THEN COOKED TO MAKE IT STERILE part.

http://en.wikipedia.org/wiki/Shelf_stable_food

>>4129372

that's exactly how canned food works. Can, pouch, or plastic container--any of it works.

The reason why cans are still common and alternative packaging is not is because it is hard to make plastic oxygen-tight. We tend to think that plastic is "air tight", the thing is that it really isn't. It allows small amounts of oxygen to pass through. It is only tiny, tiny, amounts but that is enough to make food spoil. It's only recently that people have engineered plastics that can block even minute amounts of oxygen from passing through. On the other hand, a steel can is cheap and requires no such engineering to make it oxygen-proof.

Frozen foods are around for a different reason. Anything that is kept at room temperature must be cooked first to sterilize it in the container. The cooking process for a can takes a long time due, and that can damage some foods. Those foods we tend to freeze instead of can, but for some foods you can get both (for example, peas, green beans, etc.)

>>4129388
>>4129384

Where does it say they're cooked? I missed it.

>>4129431

See >4129360

you see his 2nd sentance where it says "sealed and then cooked making it sterile".

that's how canned food works. It's sealed in the can so there is no oxygen. That prevents the fats in the food from going rancid, as well as preventing the growth of aerobic bacteria and mold. Then the can is cooked in a giant pressure cooker (called a "retort" in the canning business). This sterilizes the food, aerobic bacteria included.

>>4129386

>enjoy feeling like a nigger is parked up your butt

the poetry of /ck/ brings tears to my eyes at times.