How long doesCoconut waterlast in the fridge once opened?

What opening the package actually costs

Opening the package is the decision that settles this page. Sealed, the item holds 12 months sealed in the pantry; once open it holds 2 days open in the fridge, the same food measured in days instead of months, a drop of 180 times.

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.

• Unopened · in the pantry12 months
• Once opened · in the fridge1 day to 2 days

Turning the range into a date

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 by12 months after the day you bought it
• Once opened · in the fridgeUse by1 day to 2 days after the day you opened it

Is this window about safety or about taste?

The answer at the top of this page reads 1 day to 2 days in the fridge once opened. Nothing here names the food: neither Coconut water nor the heading it sits under says whether it spoils dangerously or keeps itself. Past it, take the shorter of the two answers: we would rather print that the record does not settle it than pick one for you.

The figure in the pantry here is a quality window. 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 Coconut water past its 1 day to 2 days in the fridge once opened window. If the food is moist, low in acid and ready to eat — a sauce, a drink, a filling — treat the date as a limit and throw it out untasted; otherwise look and smell, and out it goes if either is off.

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?

2 items in the Beverages list keep exactly as long as this item, 12 months, so they all share place 11 of 22 rather than being put in an order the data does not support. Nothing the USDA puts in the refrigerator keeps a shorter time, and 32 of those entries share this same figure.

Items that behave the same way

The 6 items below are the closest match to this item by storage behavior, running 8 months to 18 months and bracketing its 12 months.

• Yuzu juicekeeps exactly as long
• Cream liquors, unopenedkeeps 6 months in the pantry
• Nectar, papaya, mango, guava, or guavabanakeeps 12 months sealed in the pantry
• Lime juicekeeps 2 months in the fridge once openedup to 18 months sealed in the pantry
• Lemon juicekeeps 2 months in the fridge once openedup to 18 months sealed in the pantry
• Vegetable juicekeeps 18 months sealed in the pantryshelf-stable

Products the USDA rates in the same places

This is a common shape of record: 27 of the 466 products are rated in the same places, pantry from the day of purchase and refrigerator after opening, and 7 of the nine slots are left blank on all of them. Sorted by how close their windows are to this one, the nearest are Frosting or icing, Salad dressings and Chutney, and the rest of that group is what the list below draws on. Of the 8 shown, 6 keep longer than this one. The longest-keeping of them is Chutney at 1 year.

• Frosting or icing2 weeks in the fridge once openedup to 12 months sealed in the pantry
• Salad dressings1 month in the fridge once openedup to 12 months sealed in the pantry
• Chutney1 month in the fridge once openedup to 1 year sealed in the pantry
• Ketchup6 months in the fridge once openedup to 1 year sealed in the pantry
• Marinades6 months in the fridge once openedup to 1 year sealed in the pantry
• Pickles1 month in the fridge once openedup to 1 year sealed in the pantry
• Syrup6 months in the fridge once openedup to 1 year sealed in the pantry
• Tahini3 weeks in the fridge once openedup to 1 year sealed in the pantry

The rest of the Beverages shelf

The USDA puts this product on the Beverages shelf together with 21 others, and 10 of them keep longer outside the freezer. The shelf runs from Red wine at 5 years down to Soda at 3 days. Nearest this product by window are Yuzu juice, Cream liquors and Nectar, which is the order the list below is printed in. Across the whole of Beverages the same product ranks 11 of 22. The middle of the shelf is Yuzu juice, at 12 months. 2 products on this shelf publish no window outside the freezer and stay out of the order.

• Yuzu juice12 months3 months in the fridge once opened
• Cream liquors8 months6 months in the pantry
• Nectar18 months12 months sealed in the pantry
• Lime juice18 months2 months in the fridge once opened
• Lemon juice18 months2 months in the fridge once opened
• Vegetable juice18 months18 months sealed in the pantry
• Fruit Juice in cartons3 weeks8 days in the fridge once opened
• Apple cider3 weeks2 weeks in the fridge

If it has to keep longer than this

If it has to keep longer than 12 months, the Beverages aisle gives 6 products that hold at least twice as long outside the freezer. The smallest step up is Diet powder mixes and drink mixes at 24 months against this one's 12 months; after it come White wine, Coffee and Tea. They are printed below in the order the step gets bigger, not alphabetically. In the other direction, 9 entries in the category keep half as long or less, Fruit Juice in cartons and Apple cider among them.

• Diet powder mixes and drink mixes24 months1 month in the pantry once opened
• White wine2 years1 day in the fridge once opened
• Coffee2 years1 month in the fridge once opened
• Tea36 months6 months in the pantry once opened
• Red wine5 years1 day in the fridge once opened
• Nutrition supplement drinks5 years2 days in the fridge once opened

The record this page is built from

This page is built from a single FoodKeeper row, record 660 — the source’s own number for it, not a position — one of the 661 rows in the snapshot. That row fills 2 of the nine storage slots with a time, and the binding figure on it is printed by the source in months, which is the unit this page keeps rather than converting it to days. Every figure here comes from one fixed snapshot, USDA FoodKeeper, retrieved 1 September 2026, and is not refreshed page by page.

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: coconut, water

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.