How long doPotatoeslast in the pantry?
The USDA rates 2 kinds of this separately
The USDA files 2 separate entries under this name — USDA record 297 and instant — and they do not keep for the same time: Potatoes holds 1 month to 2 months outside the freezer, Potatoes, instant holds 10 months to 15 months.
The freezer helps less here than you would expect
The freezer buys less here than its reputation suggests: 6 times what the sealed pantry gives, 2 months against 12 months, both still measured in months. For this item freezing is an extension rather than a different way of keeping it.
Every storage figure the USDA publishes for this item
All three places the USDA recognizes are rated here — pantry, refrigerator and freezer — which only 65 of the 466 foods in the data manage. The source also indexes it as instant.
Potatoes
- In the freezer10 months to 12 months
- Unopened · in the pantry1 month to 2 months
- Unopened · in the fridge1 week to 2 weeks
Potatoes, instant
- Unopened · in the pantry10 months to 15 months
- Once opened · in the pantry6 months to 12 months
What the USDA adds in words
The USDA attaches 3 handling notes to this item, reproduced below word for word. None of them is a storage time: they qualify the figures above rather than replacing them. These are the source's own sentences, not ours, and they are the part of the FoodKeeper record that a table of durations cannot carry.
Potatoes, in the freezer. Freezer timeline applies to cooked and mashed potatoes.
Potatoes, in the refrigerator. The United States Potato Board notes refrigeration can cause potatoes to darken during cooking and to develop an unpleasantly sweet taste.
Potatoes, in the pantry. This is the recommended storage method for whole potatoes.
Turning the range into a date
Each kind gets its own dated rows here, 5 rows across the 2 the USDA lists under this name, because a date is only worth printing against the window it belongs to.
Potatoes
- In the freezerUse by10 months to 12 months after the day you stored it
- Unopened · in the pantryUse by1 month to 2 months after the day you bought it
- Unopened · in the fridgeUse by1 week to 2 weeks after the day you bought it
Potatoes, instant
- Unopened · in the pantryUse by10 months to 15 months after the day you bought it
- Once opened · in the pantryUse by6 months to 12 months after the day you opened it
Is this window about safety or about taste?
The answer at the top of this page reads 1 month to 2 months in the pantry. The USDA rating this place at all is the USDA saying Potatoes keeps there, so the figure rates how good it will be. Past it, judge it by look and smell: this window rates how good the food will be, not the day it becomes a hazard.
Held at 0 °F food stays safe for as long as it stays frozen, which is why a freezer figure counts as quality on this site whatever the food is. Every figure assumes the food was sound when you stored it, that your refrigerator holds 40 °F or below and your freezer 0 °F or below, and that the package was handled normally.
It is past the date. Now what?
Say the calculator above puts Potatoes past its 1 month to 2 months in the pantry window. Past that the calendar stops deciding and the food itself does. Mold, a slimy or sticky surface, soft or darkened spots, or a sour smell mean it goes out whatever the date says.
The FoodKeeper entry this page is built from prints storage times and nothing else, so anything past them here is USDA and FSIS guidance rather than a figure from the source. The whole rule, including the cases the source does not cover, is set out under what to do when the date has passed.
Two places, and one of them is the wrong one
The USDA rates two places for Potatoes in one state and they disagree: 1 month to 2 months in the pantry against 1 week to 2 weeks in the fridge. This page answers with the pantry, the longer of the two. Both figures are the USDA's own, so this is a choice of where to put the food rather than a disagreement about how long it keeps.
The two sides of that multiplier are not the same dish
The 6× multiplier on this page is drawn across a change of preparation: the source's note on the freezer figure reads "Freezer timeline applies to cooked and mashed potatoes". It divides 12 months frozen by 2 months sealed in the pantry, and those two are not the same dish. A multiplier whose sides are different preparations is worth printing only with the source's own scope note beside it.
Is that a long time?
4 items in the Produce list keep exactly as long as Potatoes, 2 months, so they all share place 8 of 89 rather than being put in an order the data does not support. Among the 244 foods the USDA also gives a pantry figure, it keeps longer than 62% of them.
Items that behave the same way
All 3 of the 6 items nearest Potatoes keep exactly as long as it does, 2 months, so the ranking around it is a tie rather than an order.
Products the USDA rates in the same places
No other product in the file is rated in exactly this set of places: freezer, pantry from the day of purchase, pantry after opening and refrigerator from the day of purchase, and nothing else. That makes the shape of this record unique among the 466 products here, so the closest comparisons available are the entries that share most of it — Apples, Pomegranate and Baby carrots. Their windows are printed beside them below, and none of them is rated in quite the same way.
Nothing carries this exact set of places, so these share most of it.
- Apples4 weeks sealed in the fridge
- Pomegranate1 month sealed in the fridge
- Baby carrots4 weeks sealed in the fridge
- Cantaloupe5 days sealed in the fridge
- Grapes1 week sealed in the fridge
- Papaya1 week sealed in the fridge
- Mushrooms3 days sealed in the fridge
- Honeydew2 days sealed in the pantry
The rest of the Fresh Vegetables shelf
The USDA puts this product on the Fresh Vegetables shelf together with 58 others, and 4 of them keep longer outside the freezer. The shelf runs from Kimchi at 12 months down to Corn on the cob at 2 days. Nearest this product by window are Onions, Spaghetti squash and Baby carrots, which is the order the list below is printed in. The order counts the longest window outside the freezer, so Potatoes sits here at 2 months rather than at the 1 month sealed in the pantry its own answer prints.
- Onions2 months2 months sealed in the fridge
- Spaghetti squash2 months2 months in the pantry
- Baby carrots4 weeks4 weeks sealed in the fridge
- Carrots3 weeks2 weeks sealed in the fridge
- Ginger root3 weeks2 weeks sealed in the fridge
- Rutabagas3 weeks2 weeks sealed in the fridge
- Yams/sweet potatoes3 weeks2 weeks sealed in the pantry
- Cilantro3 weeks2 weeks in the fridge
If it has to keep longer than this
If it has to keep longer than 2 months, the Produce aisle gives 6 products that hold at least twice as long outside the freezer. The smallest step up is Jicama at 4 months against this one's 2 months; after it come Pumpkins, Tamarind and Dates. They are printed below in the order the step gets bigger, not alphabetically. In the other direction, 77 entries in the category keep half as long or less, Baby carrots and Citrus fruit among them. The largest step the category offers is Coconut at 1 year.
- Jicama4 months4 months sealed in the pantry
- Pumpkins5 months3 months sealed in the fridge
- Tamarind6 months6 months sealed in the fridge
- Dates12 months12 months sealed in the fridge
- Kimchi12 months6 months sealed in the fridge
- Coconut1 year8 months in the fridge once opened
The record this page is built from
The USDA publishes 2 separate rows under this name — records 297 and 393 — and this page carries all of them rather than picking one, because their windows differ. Between them they fill 4 of the nine storage slots with a time. Comparisons and the place in the category are computed for Potatoes, which is the kind the plain name means here, chosen kind by kind rather than by the order the source happens to list them in. The record carries 3 handling notes, quoted on this page word for word.
Where these numbers come from
Every range on this page is published by the USDA FoodKeeper and reproduced unchanged. The multipliers, the rankings, the percentages and the dates are ours, computed from those ranges. Where the source gives a span such as 3 to 5 weeks, comparisons use the upper figure, and the full span is always printed.
Rankings cover only the items the USDA gives a usable figure for, and identical ranges share a place rather than being ordered arbitrarily. Neighbors are chosen by nearest storage time within the same category, never alphabetically: two foods filed next to each other by name usually have nothing to do with each other. The freezer is excluded from ranking because it flattens almost everything.
Where the USDA lists several kinds under one name, they share one page here and every kind keeps its own windows: the source prints them as separate rows, and a page that merged them would be inventing a figure the source never published. Comparisons and the place in the category are computed for the kind the plain name means — the shell egg for eggs, the can for tuna — which is settled name by name rather than by the order the source lists its rows in, and the page names it. Where the plain name means no single kind, the page prints no single figure at all and lists the kinds instead.
Source: USDA FoodKeeper, retrieved 1 September 2026. This site computes every comparison on this page and takes responsibility for it. Found a figure that does not match the source? Tell us on the contact page, with the page and the row — the parsing is mechanical, so a mismatch is our bug and we want it. How the whole site is built, which figures are ours and where the source can be checked is on the method page.
USDA index terms: instant, potato
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.