FoodStorageCheck

How long does peanut butter (natural) keep from purchase in the refrigerator?

Official USDA FoodKeeper guidance for one exact storage condition

RefrigeratorFrom the purchase date

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
Peanut butter
Preparation or package state
natural
Storage
Refrigerator
Timing
From the purchase date
Source field
DOP_Refrigerate

Or package use-by date, whichever comes first.

Source: USDA FSIS FoodKeeper Data, data version 128.

See every listed condition for peanut butter