First up: the smell. Fresh bacon has a smoky, slightly sweet scent—like a campfire in a good way. If you open the package and your nose twitches, pay attention.
Bad bacon smells sour, like old milk, or oddly fishy. Yes, fishy—because fat goes rancid and mimics the ocean. Ever wonder why? It’s the same principle as butter going off; oils break down and create funky compounds.
If the smell makes you scrunch your face, trust that instinct. Your nose is a bacon detective, and it’s rarely wrong.
The Color Shift: From Pink to Questionable
Now, look at the color. Fresh bacon is a cheerful pink or rosy red, with creamy white fat. That’s the grocery store ideal, right?
If your bacon has turned grayish, green, or has a weird rainbow sheen (like an oil slick), that’s a red flag. That rainbow is actually bacteria or oxidation—think of it as bacon’s version of a warning sign.
Even a little browning around the edges is normal for cured meat. But full-on green? That’s like finding mold on your favorite T-shirt—time to say goodbye.