Once opened, Salad dressing (dry,packaged) keeps about 4 weeks in the fridge. Unopened, it keeps about Until the package use-by date.
That's the longest window published for Salad dressing (dry,packaged) — opened in the fridge is its best case.
| Situation | Keeps for |
|---|---|
| Unopened · pantry | Until the package use-by date |
| Opened · fridge | 4 weeks |
Air and warmth are what shorten an opened item's life — the right container buys back the days the packaging gives up once the seal's broken.
Keep Salad dressing fresh longer ↗ Need a fresh one? ↗
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About 4 weeks refrigerated at 40°F (4°C) or below, according to USDA FoodKeeper v128. Refrigerate it once it's open.
Yes — keep Salad dressing (dry,packaged) at 40°F (4°C) or below once it's open. Cool, dry pantry unopened; refrigerate at 40°F (4°C) or below after opening.
Look for: Mould around the rim, cap, or surface; An off, fermented, or yeasty smell; Fizzing, bubbling, or a bulging lid; Separation or a colour change that won't stir back in. Those are the general signs for condiments & sauces — USDA FoodKeeper v128 publishes no spoilage note for Salad dressing (dry,packaged) specifically. Never taste something to test it — when in doubt, throw it out.