How can you tell if Whole Milk has gone bad?

Signs that Whole Milk has gone bad: Sour smell, off-yellow tinge; Lumpy or curdled when poured.

What does the date label on Whole Milk mean?

Whole Milk usually carries a "Use By" date. The last date the manufacturer recommends for peak quality — for most foods this is still quality-based, not a safety cutoff (infant formula is the one exception). See our date-labels guide for the full breakdown.

Dairy

How long does Whole Milk last?

Q: How long does Whole Milk last?

In the fridge: 5–7 days. In the freezer: 3 months. Sealed / unopened: Varies by date. Store on a middle shelf, not the door. The door is the warmest spot.

High confidence Safety concern

How long does Whole Milk last? fridge 5–7 days, freezer 3 months. Plus spoilage signs, sources, and an unopened-vs-opened note.

Fridge

5–7 days

Pantry

Refrigerate only

Freezer

3 months

Sealed / unopened: Varies by date

Signs Whole Milk has gone bad

Sour smell, off-yellow tinge.
Lumpy or curdled when poured.

Discard immediately if

Visible mold on the lid or rim
Smells distinctly sour even without warming
Texture has separated into solids and liquid that won’t mix back

Why guidance varies

Dairy spoilage depends on initial pasteurization, fridge temperature, and how often the container is opened; manufacturer-printed dates assume continuous storage at 40°F (4°C) or below.

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Sources for this answer

A USDA FoodKeeper — Storage windows and refrigeration guidance for this category.
A USDA FSIS — Food Product Dating — Date-label interpretation and food-safety baseline.

Reviewed: 2026-05 · Rule: if manufacturer storage instructions are stricter than category guidance, the manufacturer instructions win.