What is white on pork chops when cooking?

The white stuff on pork chops when cooking is most likely fat.

Here's why:

* Pork is naturally marbled with fat: This fat is what gives pork its juicy flavor. When you cook pork, the fat melts and renders, creating the white, glistening substance you see.

* There are different types of fat: Some fat is intramuscular (marbling), while some is subcutaneous (just beneath the skin). The type of fat and how it's distributed can affect the appearance of the white stuff.

* Fat content varies: The amount of fat in pork chops can vary depending on the cut, the breed of pig, and the animal's diet.

Important Note: Sometimes, the white stuff on pork chops could be a sign of poor quality meat or improper storage. If the white substance is firm, dry, and crumbly, or if the pork chop has a sour or rancid smell, it's best to discard it.

In general, a little bit of white fat on pork chops is normal and desirable. It contributes to flavor and juiciness. However, if you prefer less fat, you can trim some of it off before cooking.