Salad dressing (vinaigrette,homemade) keeps about 2–3 weeks in the fridge at 40°F (4°C) or below, counting from the day you bought it.
| Situation | Keeps for |
|---|---|
| Unopened · fridge | 2–3 weeks |
About 2–3 weeks at 40°F (4°C) or below, according to USDA FoodKeeper v128. That window runs from the day you bought it — FoodKeeper publishes no separate after-opening figure for this one.
Yes — keep Salad dressing (vinaigrette,homemade) at 40°F (4°C) or below. Refrigerate at 40°F (4°C) or below.
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. Never taste something to test it — when in doubt, throw it out.