FoodStorageCheck

How long does walnuts (shell or no shell) keep from purchase in the refrigerator?

Official USDA FoodKeeper guidance for one exact storage condition

RefrigeratorFrom the purchase date

9 to 12 months

This is storage guidance from the cited FoodKeeper record, not a guarantee that food remains safe through the final day.

Refrigerator at or below 40 °F (4 °C)

Answer basis

Food
Walnuts
Preparation or package state
shell or no shell
Storage
Refrigerator
Timing
From the purchase date
Source field
DOP_Refrigerate

Source: USDA FSIS FoodKeeper Data, data version 128.

See every listed condition for walnuts