How Long Does Pesto Last in the Fridge? A Handy Guide for Homemade and Store-Bought Pesto

Pesto is a deliciously versatile sauce, perfect for pastas, sandwiches, pizzas, and more. Whether you’ve made it fresh at home or opened a jar of store-bought pesto, knowing how long it stays fresh in the fridge is key to getting the most out of this flavorful sauce. In this guide, we’ll cover the fridge shelf life of both homemade and opened store-bought pesto, along with a few tips for maximizing freshness!

Homemade Pesto: How Long Does It Last?

Homemade pesto is rich, vibrant, and packed with fresh ingredients like basil, garlic, olive oil, and Parmesan. But because it’s made from fresh ingredients without preservatives, its shelf life is shorter than its store-bought counterpart.

How long does homemade pesto last?
Homemade pesto will last 3 to 5 days in the fridge when stored properly. For the best flavor and freshness, you should aim to use it within 3 days, though it may still be safe to eat for up to 5 days.

Storage Tips for Homemade Pesto:

• Airtight Containers: Store homemade pesto in an airtight container to prevent air exposure, which can cause the pesto to oxidize and lose its bright green color.
• Add Extra Olive Oil: To keep your pesto fresh longer, drizzle a thin layer of olive oil on top before sealing the container. This creates a barrier to keep the air out and help preserve the vibrant color.
• Freeze for Longer Storage: If you know you won’t use all your homemade pesto within a few days, freezing is a great option. Spoon the pesto into an ice cube tray, freeze, and then transfer the cubes to a freezer-safe bag. Frozen pesto can last up to 6 months in the freezer.

Store-Bought Pesto (Opened): How Long Does It Last?

Store-bought pesto typically contains preservatives that help extend its shelf life compared to homemade versions. However, once the jar is opened, the clock starts ticking.

How long does opened store-bought pesto last?
Once opened, store-bought pesto will last 5 to 7 days in the fridge. While some brands may last a little longer, it’s best to stick within this timeframe to ensure maximum freshness and flavor.

Storage Tips for Opened Store-Bought Pesto:

• Use Clean Utensils: Always use a clean spoon or utensil to scoop out the pesto. This prevents bacteria from contaminating the jar and causing it to spoil faster.
• Seal Tightly: Make sure the jar is tightly sealed after each use to keep air out, which can cause the pesto to dry out or lose its flavor.
• Store in the Coldest Part of the Fridge: To extend the life of your pesto, store it in the coldest part of your fridge, usually towards the back.

How to Tell If Pesto Has Gone Bad

Even with proper storage, pesto won’t last forever. Here are a few signs that your pesto may have spoiled:

• Color Change: If your pesto has turned a dull brown or gray, it’s a sign that it’s oxidizing or spoiling. A slight change in color can happen with exposure to air, but if the entire pesto changes color, it’s time to toss it.
• Off Smell: Fresh pesto should have a bright, herbal smell. If it smells sour, rancid, or off in any way, it’s a sign that the ingredients have started to spoil.
• Texture Changes: If your pesto has separated into layers, with oil on top and solid ingredients underneath, give it a stir. However, if the texture is clumpy or excessively watery after mixing, it may be a sign of spoilage.
• Mold Growth: Any visible mold, no matter how small, means the pesto has spoiled and should be discarded immediately.

Can You Freeze Store-Bought Pesto?

Yes! Just like homemade pesto, you can freeze store-bought pesto for longer storage. Transfer the remaining pesto into a freezer-safe container or portion it into an ice cube tray. Once frozen, store the cubes in a freezer bag, and they’ll keep for up to 6 months. When you’re ready to use it, just defrost in the fridge overnight or stir directly into warm pasta.

Maximizing the Shelf Life of Pesto

Whether homemade or store-bought, here are a few extra tips to help your pesto last as long as possible:

1. Add Olive Oil: Adding a layer of olive oil on top of your pesto before storing helps keep air out and preserves its vibrant color and flavor.
2. Use Fresh Ingredients: For homemade pesto, always use the freshest ingredients possible. Fresh basil, good-quality Parmesan, and a high-quality olive oil will not only improve the taste but also help the pesto stay fresh longer.
3. Label and Date: When storing pesto, especially in the freezer, label the container with the date you made or opened it, so you know how long it’s been in storage.

Enjoy Your Pesto at Its Freshest!

Pesto is a fantastic addition to a variety of dishes, but like any fresh food, it has a limited shelf life. Homemade pesto lasts 3 to 5 days in the fridge, while opened store-bought pesto can last 5 to 7 days. Always store it in an airtight container, use clean utensils, and keep an eye on color, smell, and texture to ensure you’re enjoying your pesto at its freshest. If you need more time, freeze it for up to 6 months and have delicious pesto ready whenever you need it!