How long do Oils last in the pantry once opened?
Turning the range into a date
Oils keep 3–5 months in the pantry 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, 3 rows in all.
- Unopened · in the pantryUse by6 months to 12 months after the day you bought it
- Once opened · in the pantryUse by3 months to 5 months after the day you opened it
- Once opened · in the fridgeUse by4 months after the day you opened it
Sealed against opened
Opening the package costs 2.4 times here: 12 months sealed in the pantry against 5 months open in the pantry. 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 25 of 52, between Gelatin at 12 months and Nut oils at 12 months. Olive, vegetable and oil are the same food in the source list.
Every storage figure the USDA publishes for this item
The USDA gives this item a pantry and a refrigerator figure and no freezer figure at all, the pattern behind 79 of the 466 foods in the data. Within Baked Goods it is filed under Baking and Cooking.
- Unopened · in the pantry6 months to 12 months
- Once opened · in the pantry3 months to 5 months
- Once opened · in the fridge4 months
Can you freeze oils?
The USDA prints no freezer time for oils. Frozen at 0 °F any food stays safe; whether they are still good after thawing is a matter of quality. Keep the fridge at 40 °F or below and the freezer at 0 °F.
How to tell if oils have gone bad
Go by the date first: oils keep 3–5 months in the pantry once opened. Insects, a musty or rancid smell, clumping from damp, or a swollen can mean it goes out. Any dish you cook with it follows the 2-hour rule, 1 hour above 90 °F.
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 5 months in the pantry once opened. The USDA rating this place at all is the USDA saying Oils, olive or vegetable keeps there, so the figure rates how good it will be. 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 Oils, olive or vegetable past its 3 months to 5 months in the pantry once opened window. Past that the calendar stops deciding and the food itself does. Mold takes the whole package out rather than the slice it grew on, and so does a musty or old-oil smell in a flour or a mix.
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
All 6 of the 6 items nearest this item keep exactly as long as it does, 12 months, so the ranking around it is a tie rather than an order.
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: oil, Oils, olive, vegetable
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.