How Long Does Pesto (homemade) Last? — Shelf Life & Storage Guide

Pesto (homemade) lasts 5-7 days in the fridge. Complete shelf life, storage tips, and spoilage signs. This guide covers everything you need to know about this topic, including common causes, step-by-step solutions, and answers to frequently asked questions.

Here are the key things to understand: Refrigerator: 5-7 days. Freezer: 3-6 months. Pantry/Counter: Not safe. Category: Condiments. Understanding these fundamentals will help you diagnose and resolve this issue more effectively.

The most common reasons this occurs include: Spoilage sign: Dark brown or black color (beyond normal darkening). Spoilage sign: Off or rancid smell. Spoilage sign: Mold on surface. Spoilage sign: Sour taste. Identifying the root cause is the first step toward finding the right solution.

To resolve this, follow these recommended steps: Pour a thin layer of olive oil on top before sealing to prevent oxidation. Freeze pesto in ice cube trays — pop out frozen cubes for individual pasta servings. Pesto darkens naturally due to basil oxidation — still safe if no mold or off smell. Store-bought jarred pesto: 7-10 days after opening. Pine nuts make pesto spoil faster than versions with walnuts or no nuts. If these steps do not resolve the issue, consider consulting additional resources or a qualified professional.

This article is part of our Shelf Life & Storage collection on Cooking Reference Wiki. We provide comprehensive, up-to-date information to help you find solutions quickly.