What’s SPAM, really — and what goes into it?

SPAM is its long shelf life.

That’s largely because it is canned and heat-processed.

The sealed can is processed at high temperatures to make the product commercially sterile and stable at room temperature while unopened.

That means you can keep an unopened can in your pantry without refrigeration, assuming it has been stored properly and remains within its recommended quality period.

Once opened, however, the situation changes.

Why Is There So Much Salt?

Salt plays an important role in processed meat products.

In SPAM, salt contributes to flavor and also