How long does Salad dressing last in the fridge once opened?
Turning the range into a date
Salad dressing (creamy) keeps 3–4 weeks in the fridge once opened. Each kind gets its own dated rows here, 7 rows across the 5 the USDA lists under this name, because a date is only worth printing against the window it belongs to.
Salad dressing, creamy
- Unopened · in the pantryUse by6 months after the day you bought it
- Once opened · in the fridgeUse by3 weeks to 4 weeks after the day you opened it
Salad dressing, vinaigrette,homemade
- In the fridgeUse by2 weeks to 3 weeks after the day you stored it
Salad dressing, vinaigrette
- Unopened · in the pantryUse by6 months after the day you bought it
- Once opened · in the fridgeUse by4 weeks after the day you opened it
Salad dressing, dry,packaged
- Once opened · in the fridgeUse by4 weeks after the day you opened it
Salad dressing, homemade
- Once opened · in the fridgeUse by2 weeks after the day you opened it
The USDA rates 5 kinds of this separately
Salad dressing, homemade keeps 2 weeks, which is shorter than the window this page answers with. The USDA files 5 separate entries under this name — creamy, vinaigrette,homemade, vinaigrette, dry,packaged and homemade — and they do not keep for the same time: Salad dressing, homemade holds 2 weeks outside the freezer, Salad dressing, vinaigrette holds 6 months.
What opening the package actually costs
Opening the package is the decision that settles this page. Sealed, the item holds 6 months sealed in the pantry; once open it holds 4 weeks open in the fridge, the same food measured in weeks instead of months, a drop of 6.4 times. On the same shelf it sits 29 of 41, between Hot sauce at 6 months and Duck fat at 30 days. Creamy salad dressing, creamy and vinaigrette are the same food in the source list.
Every storage figure the USDA publishes for this item
The USDA gives this item 3 storage times across the pantry and the refrigerator and none for the freezer, though it does attach a freezing note: a note is not a published figure. The source also indexes it as creamy, vinaigrette, homemade and dry.
Salad dressing, creamy
- Unopened · in the pantry6 months
- Once opened · in the fridge3 weeks to 4 weeks
Salad dressing, vinaigrette,homemade
- In the fridge2 weeks to 3 weeks
Salad dressing, vinaigrette
- Unopened · in the pantry6 months
- Once opened · in the fridge4 weeks
Salad dressing, dry,packaged
- In the pantryPackage use-by date
- Once opened · in the fridge4 weeks
Salad dressing, homemade
- Once opened · in the fridge2 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.
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.
Salad dressing, creamy, in the freezer. Freezing not recommended.
Salad dressing, vinaigrette, in the freezer. Freezing not recommended.
Salad dressing, dry,packaged, in the freezer. Freezing not recommended.
Can you freeze salad dressing?
The USDA prints no freezer time for salad dressing. Frozen at 0 °F any food stays safe; whether it is 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 salad dressing has gone bad
Go by the date first: salad dressing keeps 3–4 weeks in the fridge once opened. A bulging, leaking or badly dented can, or a jar whose lid has popped, goes out unopened; so does mold or fizzing in an opened one. Once opened, keep it in the fridge at 40 °F or below.
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 weeks to 4 weeks in the fridge once opened. What decides that is the food and not the shelf the source files it on: Salad dressing, creamy is an animal food, or made with one. Past it, it is not safe to eat: throw it out without tasting, because bacteria build up while food still looks and smells fine.
The figures in the pantry, in the fridge and in the fridge once opened here are a quality window. The figure in the fridge once opened here is not settled by this record. 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.
It is past the date. Now what?
Say the calculator above puts Salad dressing, creamy past its 3 weeks to 4 weeks in the fridge once opened window, or the container sat out on the counter overnight. Throw the container out without tasting it, and count any hours it already spent out of the refrigerator as part of that window rather than on top of it.
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 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 4 of the 6 items nearest Salad dressing, creamy keep exactly as long as it does, 6 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.
Comparisons and the place in the category are computed for Salad dressing, creamy, 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.
USDA index terms: creamy, creamy salad dressing, dressing, dry, homemade, homemade salad dressing, package, packaged, powder, powdered, salad, vinaigrette
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.