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How long does Horseradish last in the fridge once opened?

USDA FoodKeeper: Horseradish, in jar

Once opened · in the fridge

Use by3 months to 4 months

Counted from the day you opened it

Quality window · past it, judge it yourself

How this date is worked out

From KeepsUntilIt is past the dateWhat to do when the window has run out, and when tasting is not a test Where these numbers come fromThe USDA source, the parse rules and what this site cannot tell you Every food on the siteOne page, every product, longest first

Turning the range into a date

Horseradish keeps 3–4 months in the fridge once opened. Two clocks run on this item: one from the day it went into storage and one from the day the seal broke. Both are listed below, 2 rows in all.

Unopened · in the fridgeUse by12 months after the day you bought it
Once opened · in the fridgeUse by3 months to 4 months after the day you opened it

Unopened · in the fridge

12 months

Counted from the day you bought it

3×

What opening the package costs360 days sealed in the fridge ÷ 120 days open in the fridge

Sealed against opened

Opening the package costs 3 times here: 12 months sealed in the fridge against 4 months open in the fridge. That is a real difference and worth dating the container for, but not the collapse it becomes for the more perishable items in the same list. On the same shelf it sits 26 of 41, between Cream sauces, milk solids at 12 months and Salad dressings, commercial, bottled at 12 months.

Every storage figure the USDA publishes for this item

The refrigerator is the only place the USDA gives this item a storage time, as it does for 64 of the 466 foods the USDA lists.

Unopened · in the fridge12 months
Once opened · in the fridge3 months to 4 months

Can you freeze horseradish?

The USDA prints no freezer time for horseradish. Frozen at 0 °F any food stays safe; whether it is still good after thawing is a matter of quality. Keep the fridge at 40 °F or below and the freezer at 0 °F.

From KeepsUntilWhere these numbers come fromThe USDA source, the parse rules and what this site cannot tell you

How to tell if horseradish has gone bad

Go by the date first: horseradish keeps 3–4 months in the fridge once opened. A bulging, leaking or badly dented can, or a jar whose lid has popped, goes out unopened; so does mold or fizzing in an opened one. Once opened, keep it in the fridge at 40 °F or below.

Sources: USDA FSIS: the danger zone USDA FSIS: freezing and food safety FDA: are you storing food safely FoodSafety.gov: the FoodKeeper app.

Is it still safe to eat, or just past its best?

The answer at the top of this page reads 3 months to 4 months in the fridge once opened. What decides that is the food and not the shelf the source files it on: Horseradish, in jar is acid, dry, sweet, alcoholic or pure fat. Past it, whether it has gone bad is yours to judge by look and smell: this window rates quality, not the day it turns hazardous.

It is past the date. Now what?

Say the calculator above puts Horseradish, in jar past its 3 months to 4 months in the fridge once opened window. Past that the calendar stops deciding and the food itself does. A jar or can that is bulging, leaking or rusted goes out unopened, and so does an opened one with mold at the rim or a sour, fizzing smell.

The whole rule, including the cases the source does not cover, is set out under what to do when the date has passed.

Items that behave the same way

The 6 items nearest it sit inside a band of 12 months to 1 year — a tight cluster, and this item at 12 months is inside it.

Where these numbers come from

Every storage time on this page is the USDA’s own published figure from the FoodKeeper data, one of the 9 it keeps per food, reproduced unchanged and never an estimate of ours. Where the USDA lists several kinds under one name, each kind keeps its own windows, and the page names the kind its answer is for. The dates and multipliers are ours, computed from those ranges.

Source: USDA FoodKeeper, retrieved 1 September 2026. Found a figure that does not match the source? Tell us on the contact page. How the site is built is on the method page.

USDA index terms: Horseradish, jar

KeepsUntil is an independent reference built on public USDA data. It is not affiliated with, endorsed by, or connected to the U.S. Department of Agriculture or the Food and Drug Administration. Whether a given window is a safety limit or a quality window is stated on the page that prints it.