Homemade eggnog? That’s a ticking clock. With alcohol, it’s good for about two to three weeks in the fridge. Without booze? Toss it after three days. Seriously. Don’t test that.
Store-bought, pre-spiked eggnog is a little more forgiving. The pasteurization and preservatives buy you a bit more time. Check the carton: most say “use within 5 to 7 days of opening.” That’s a suggestion, but a smart one.
Does Eggnog Go Bad?
If it’s unopened and past the “sell by” date? You’ve got maybe a week leeway. After that, it’s a gamble. And gambling is fun at a casino, not on your gut.
The “But I Added Extra Whiskey” Myth
I hear you. You poured in half a bottle of high-proof bourbon. You think you’ve created a no-go zone for bacteria. Bless your heart.
Here’s the truth: to really preserve eggnog, you’d need around 20% alcohol by volume. Most store-bought mixes hover around 5 to 10% after you spike them. That’s like telling a rainstorm to stop with an umbrella—helpful, but not foolproof.
So no, your extra shot of Fireball doesn’t make it immortal. It just makes it more boozy and slightly less likely to sour. But “slightly less” is not “zero.” Don’t test fate.
