How Long Food Lasts

Pesto

How long does pesto last once opened?

Pesto (jarred, opened) keeps 3 days in the refrigerator.

Fridge

After opening

3days

Freezer

Can be frozen: yes

-

Pantry

No known time

-

Mine has been in the fridge for

Refreeze after thawing in the fridge?

United States
Yes
United Kingdom
Only after cooking

How long does pesto last in the refrigerator?

  • Jarred, opened3 daysAfter opening

Refrigerators should be set to maintain a temperature of 40 °F or below.

Your fridge should be set between 0 and 5°C.

Other forms

FormFridgeFreezerPantry
Jarred3 days1 month-

Sources

We always show the most cautious time among official sources. Last verified: October 1, 2026.