how is a ready meal containing chicken I got from aldi shelf stable and doesn’t need to be refrigerated?

Question

EDIT: Solved! Thanks to everyone who commented.

I’m talking about [this](https://ch-it.openfoodfacts.org/product/4099200059402/huhn-suss-sauer-aldi)

It’s basically a box that was on the shelf, un refrigerated, that contains cooked chicken. How are they able to keep cooked chicken shelf stable for so long?

In: 321

Answer 1

Your question is going to get removed because it is easy to look up the answer.

The package has to be airtight to prevent contact between the air and the food. The food must not have active bacteria on it and the moisture needs to be controlled.

Found preservation is as old as humans.

We use high salt concentrations, think beef jerky.

We can use sugar, thick of jams, jellys and honey.

We can use wax, think of cheese.

We can use heat, think of ultra high temperature (UHT) milk.

We can use acids or bases, pickles and olives.

We can use dehydration, think powdered milk.

We can excluding air, think canned and jared foods

Your chicken has been made shelf stable by one or more of those methods.

EDIT. radiation. Not commonly used in foods. Also the autoclave. Heat and pressure.

Also freezing!