How long do Potato chips last in the pantry once opened?
Turning the range into a date
Potato chips keep 1–2 weeks 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, 2 rows in all.
- Unopened · in the pantryUse by2 months after the day you bought it
- Once opened · in the pantryUse by1 week to 2 weeks after the day you opened it
What opening the package actually costs
Opening the package is the decision that settles this page. Sealed, the item holds 2 months sealed in the pantry; once open it holds 2 weeks open in the pantry, the same food measured in weeks instead of months, a drop of 4.3 times. On the same shelf it sits 67 of 70, between Pine nuts at 3 months and Pectin at 1 month. Chip and potatoes are the same food in the source list.
Every storage figure the USDA publishes for this item
The USDA rates this item in the pantry and nowhere else, one of 84 foods of the 466 it files that way.
- In the pantryPackage use-by date
- Unopened · in the pantry2 months
- Once opened · in the pantry1 week to 2 weeks
Where the USDA answers in words instead of days
1 of the nine slots the USDA keeps for this item holds an answer that is not a number, and an answer in words is still an answer: in the pantry it answers with the package date rather than a number, and the use-by date printed on that particular package is the figure to go by.
Can you freeze potato chips?
The USDA prints no freezer time for potato chips. 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 potato chips have gone bad
Go by the date first: potato chips keep 1–2 weeks 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 1 week to 2 weeks in the pantry once opened. The USDA rating this place at all is the USDA saying Potato chips 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 Potato chips past its 1 week to 2 weeks in the pantry once opened window. Past that the calendar stops deciding and the food itself does. A rancid, paint-like smell in a nut, an oil or a seed, mold around the neck of a bottle, or a swollen can mean it goes out whatever the date says.
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 below are the closest match to this item by storage behavior, running 7 days to 5 months and bracketing its 2 months.
- Pectinkeeps 1 month in the pantry once opened
- Cashew butterkeeps 3 months in the pantry
- Pine nutskeeps 3 months in the fridge
- Roasted nuts (peanuts, cashews, almonds)keeps 4 weeks in the fridge once opened
- Polentakeeps 5–7 days in the fridge once openedshelf-stable
- Marshmallow crèmekeeps 1 month in the pantry once openedup to 5 months sealed in the pantry
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: chip, chips, potato, potatoes
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.