I bought salmon a week ago and wanted to make it for dinner today. When I took it out of the refrigerator, it had a yellow stain on it. What is it?

🐟 The Yellow Stain on Salmon: What It Means, Why It Happens, and How to Stay Safe

Introduction: A Common Kitchen Dilemma

You bought salmon a week ago, tucked it neatly into the refrigerator, and planned to enjoy it for dinner today. But when you pulled it out, you noticed something unsettling: a yellow stain on the flesh. Suddenly, questions arise. Is it safe to eat? What caused the discoloration? Should you cook it anyway, or toss it out?

This scenario is more common than you might think. Salmon, prized for its rich flavor and omega-3 fatty acids, is also highly perishable. Understanding what that yellow stain means requires a dive into food science, storage practices, and the natural composition of salmon.

Part I: The Science of Salmon