How Long Does Pesto Last in the Fridge? Storage Tips and Tricks

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How long does pesto last in the fridge? If you’ve ever wondered about the shelf life of this vibrant green sauce, you’re in the right place. Pesto is a versatile and delicious addition to many dishes, making it a favorite for home cooks and chefs alike. But, how long can you keep it in the fridge before it goes bad?

Trivia Question: Did you know that the traditional pesto originates from Genoa in Italy? This classic sauce is made from fresh basil, garlic, pine nuts, Parmesan cheese, and olive oil.

how long does pesto last in the fridge

Pesto Shelf Life

The shelf life of pesto can vary depending on whether it’s homemade or store-bought. Typically, store-bought pesto comes with a use-by date and can last up to a week after opening, while homemade pesto usually lasts about 5-7 days in the fridge. Understanding the pesto storage duration ensures you enjoy it at its freshest and avoid any potential spoilage.

Storage Tips and Tricks

Proper Refrigeration

To maximize the pesto freshness period, store your pesto in an airtight container in the fridge. This minimizes exposure to air, which can cause oxidation and spoilage.

Freezing Pesto

If you want to keep pesto for longer, consider freezing it. Transfer the pesto into an ice cube tray to create small, single-use portions. Once frozen, transfer the cubes into a freezer-safe bag. Frozen pesto can last up to 6 months.

Signs of Spoiled Pesto

Knowing the pesto spoilage signs is crucial to avoid consuming bad pesto. Look out for:

  • Mold growth
  • Off smell
  • Discoloration (such as turning brown)
  • Changes in texture

Recipe: Classic Pesto

This recipe is perfect for those who love fresh, homemade sauces. It’s quick, easy, and packed with flavor. Adjust the serving size below to fit your needs.

Yields 1 cup
Prep Time 10 minutes
Cook Time 0 minutes
Total Time 10 minutes
Calories per Serving 200


  • 2 cups fresh basil leaves
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup extra virgin olive oil
  • 1/3 cup pine nuts
  • 3 garlic cloves, minced
  • Salt and pepper to taste


Step 1: In a food processor, combine the basil leaves, Parmesan cheese, pine nuts, and garlic. Pulse until finely chopped.

Step 2: With the food processor running, slowly add the olive oil in a steady stream. Continue processing until the mixture is smooth and well combined.

Step 3: Season with salt and pepper to taste. Pulse a few more times to blend the seasonings.

Step 4: Transfer the pesto to an airtight container and store it in the fridge until ready to use.

Nutrition Facts

Nutrient Amount per Serving
Calories 200
Fat 20g
Saturated Fat 3g
Cholesterol 5mg
Sodium 150mg
Carbohydrates 2g
Protein 3g

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Tips and Shortcuts

For a quicker version, consider using pre-grated cheese and pre-minced garlic. If you’re out of pine nuts, walnuts or almonds can be a great substitute. Adding a squeeze of lemon juice can help preserve the bright green color of the pesto.

Kitchen Equipment

  • Food Processor
  • Measuring Cups
  • Measuring Spoons
  • Airtight Container
  • Ice Cube Tray (for freezing)

How to Store Leftovers

Store any leftover pesto in an airtight container in the fridge. For longer storage, freeze the pesto in ice cube trays and transfer the cubes to a freezer-safe bag. Thaw as needed.

Pairing Suggestions

Pesto pairs wonderfully with pasta, grilled chicken, and even as a spread on sandwiches. For a refreshing drink, pair it with a crisp white wine or a light, sparkling water with lemon.

how long does pesto last in the fridge

Frequently Asked Questions

Q: Does pesto go bad in the fridge?
A: Yes, pesto can go bad in the fridge. Look for signs of spoilage such as mold, off smell, discoloration, and changes in texture.

Q: Can you eat pesto 2 weeks after opening?
A: It is generally not recommended to eat pesto 2 weeks after opening. Store-bought pesto usually lasts about a week after opening, while homemade pesto lasts 5-7 days.

Q: How do you store pesto for longer?
A: To store pesto for longer, freeze it in ice cube trays and transfer the cubes to a freezer-safe bag. Frozen pesto can last up to 6 months.

Q: Is brown pesto ok to eat?
A: Brown pesto indicates oxidation and potential spoilage. It is best to avoid eating brown pesto to ensure food safety.

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