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?

What Should You Do Now?

If it smells normal and feels firm:

• It may still be okay, but proceed with caution.
• If you choose to eat it, cook it thoroughly.

If it smells off or feels slimy:

• Don’t risk it.
• Throw it away.

When in doubt:

• It’s better to be safe than sorry.
• Food poisoning from spoiled fish can be serious.

The Bottom Line

A yellow stain on salmon is often harmless fat bloom, but since the salmon has been in the refrigerator for a week, the safest choice is usually to discard it—especially if you notice any smell or texture changes.

When it comes to seafood, freshness matters more than anything.