Basically, horseradish tends to lose its distinct flavor over time, meaning that while you can still consume it, the taste will pale in comparison to when you just bought it. Store-bought fresh horseradish can stay fresh for 1-2 weeks in the pantry. However, it's better to toss it in the fridge.

Is it OK to eat expired horseradish?

Generally, it should be okay to eat and of good quality for at least a few months past that date. Once you open the package, the sauce degrades in quality over time. For the best quality, try to finish the bottle within 1 to 2 months.

Can bad horseradish make you sick?

Horseradish can cause side effects including stomach upset, bloody vomiting, and diarrhea. It may also slow down the activity of the thyroid gland. When used on the skin, horseradish is POSSIBLY SAFE when preparations containing 2% mustard oil or less are used, but it can cause skin irritation and allergic reactions.