How long doesTunalast in the pantry?

The USDA rates 2 kinds of this separately

Tuna, packet keeps 3 days, which is shorter than the window this page answers with. The USDA files 2 separate entries under this name — packet and canned — and they do not keep for the same time: Tuna, packet holds 18 months outside the freezer, Tuna, canned holds 3 years.

Built to sit on a shelf

Tuna, canned is built to sit. It keeps 3 years outside the freezer. Among the 244 foods the USDA also gives a pantry figure, it keeps longer than 87% of them. It is long enough that the date it went into storage matters more than anything you can judge by looking at it.

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. The source also indexes it as packet, retort, retort packaging and canned.

Tuna, packet

• Unopened · in the pantry18 months
• Once opened · in the fridge3 days to 4 days

Tuna, canned

• In the pantry3 years

Turning the range into a date

Each kind gets its own dated rows here, 3 rows across the 2 the USDA lists under this name, because a date is only worth printing against the window it belongs to.

Tuna, packet

• Unopened · in the pantryUse by18 months after the day you bought it
• Once opened · in the fridgeUse by3 days to 4 days after the day you opened it

Tuna, canned

• In the pantryUse by3 years after the day you stored it

Is this window about safety or about taste?

The answer at the top of this page reads 3 years in the pantry. The USDA rating this place at all is the USDA saying Tuna, canned 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.

The figure in the fridge once opened here is a safety limit. The same page carries windows of more than one kind, so which sentence applies depends on which row you are reading, not on the food. 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 Tuna, canned past its 3 years in the pantry 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 USDA's limit for perishable food standing at room temperature is 2 hours, or 1 hour when the kitchen is above 90 °F, and that clock runs whatever the storage figure 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.

Is that a long time?

3 items in the Shelf Stable Foods list keep exactly as long as Tuna, canned, 3 years, so they all share place 8 of 70 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 87% of them.

Items that behave the same way

Every one of the 6 nearest items keeps the same or less, 2 years to 3 years against the 3 years of Tuna, canned, which makes it the durable end of the cluster.

• Coconut oilkeeps exactly as long
• Tomato pastekeeps 5 days in the fridge once openedup to 27 months sealed in the pantry
• Chocolate syrupkeeps 6 months in the fridge once openedup to 2 years sealed in the pantry
• Popcornkeeps 1 year in the pantry once openeddry kernels in jar · up to 2 years sealed in the pantry
• Black pepperkeeps 2 years sealed in the pantryground, dried, commercially bottled or…
• Cajun seasoning blend, ground, dried, commercially bottled or purchased in bulkkeeps 1 year sealed in the pantry

Products the USDA rates in the same places

Only 1 other product in the whole file carries the same set of rated places as this one, pantry, pantry from the day of purchase and refrigerator after opening: Barbecue sauce. That is 1 product out of 466, which makes this a rare shape of record rather than a common one, and it is worth knowing that the comparison below is drawn from a very small group. Of the ones shown, none keeps longer than this one does. The longest-keeping of them is Barbecue sauce at 1 year.

• Barbecue sauce4 months in the fridge once openedbottled · up to 1 year sealed in the pantry

Closest by shape, but not an exact match — they share most of these places, not all of them.

• Sunflower seeds7 months in the fridge once openedroasted, no shell · up to 12 months sealed in the pantry
• Tomato paste5 days in the fridge once openedup to 27 months sealed in the pantry
• Chocolate syrup6 months in the fridge once openedup to 2 years sealed in the pantry
• Peanut butter2 months in the pantry once openedcommercial · up to 24 months sealed in the pantry
• Applesauce7 days in the fridge once openedcommercial · up to 18 months sealed in the pantry
• Nuts2 months in the pantry once openedup to 1 year sealed in the pantry
• Sun dried tomatoes3 months in the fridge once openedup to 1 year sealed in the pantry

The rest of the Shelf Stable Foods shelf

The USDA puts this product on the Shelf Stable Foods shelf together with 69 others, and 7 of them keep longer outside the freezer. The shelf runs from Coconut cream at 5 years down to Polenta at 7 days. Nearest this product by window are Coconut oil, Corn syrup and Tomato paste, which is the order the list below is printed in. Across the whole of Shelf Stable Foods the same product ranks 8 of 70. The middle of the shelf is Grapeseed oil, at 1 year.

• Coconut oil3 years3 years in the pantry
• Corn syrup3 years3 years in the pantry
• Tomato paste27 months5 days in the fridge once opened
• Chocolate syrup2 years6 months in the fridge once opened
• Molasses2 years6 months in the pantry once opened
• Popcorn2 years1 year in the pantry once opened
• Black pepper2 years2 years sealed in the pantry
• Cajun seasoning blend2 years1 year sealed in the pantry

If it has to keep longer than this

Nothing the USDA files under Shelf Stable Foods keeps at least twice as long as this one outside the freezer. It runs the other way: 48 entries in the category keep half as long or less, among them Applesauce, Fruit cocktail and Chia seeds. So the question this page answers is not what to buy instead, but what this product outlasts on the same shelf, and by how much. Twice as long is the cutoff used here, so a product a few days apart from this one is not treated as a step.

• Applesauce18 months7 days in the fridge once opened
• Fruit cocktail18 months18 months in the pantry
• Chia seeds18 months18 months in the pantry
• Bacon bits1 year1 year sealed in the pantry
• Marshmallows1 year1 month in the pantry once opened
• Nuts1 year2 months in the pantry once opened
• Pudding mixes1 year3 months in the pantry once opened
• Soup mixes1 year1 year in the pantry once opened

The record this page is built from

The USDA publishes 2 separate rows under this name — records 617 and 618 — and this page carries all of them rather than picking one, because their windows differ. Between them they fill 3 of the nine storage slots with a time. Comparisons and the place in the category are computed for Tuna, canned, 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 same record answers to packet, retort, retort packaging and canned in the source's own index.

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: canned, canned tuna, packet, retort, retort packaging, tuna packet

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.