How Long Does Pesto Last and How to Keep It Fresh Longer?

Pesto, a flavorful staple in many kitchens, has a limited shelf life. But how long does it really last?

Whether homemade or store-bought, understanding pesto’s expiration date is key to keeping your dishes fresh and delicious.

In this article, we’ll explore how long pesto lasts and share expert tips on how to keep it fresh for longer.

How Long Does Pesto Last in the Fridge, Freezer, or at Room Temperature? Quick Look

Homemade Pesto:

• Fridge: 1-2 weeks
• Freezer: 6-9 months
• Room Temperature: 1-3 days

Store-Bought Pesto:

• Fridge: 6-12 months (unopened), 1-2 weeks (opened)
• Freezer: 12-18 months
• Room Temperature: 1-2 weeks (unopened), 1-3 days (opened)

Note: Shelf life may vary depending on factors like storage conditions, ingredient quality, and personal tolerance for spoilage. Always check for signs of spoilage before consuming.

How Long Does Homemade Pesto Last in the Fridge?

When stored properly in the fridge, homemade pesto can last for around 1-2 weeks. However, its shelf life can vary depending on several factors, such as:

• Storage conditions: Keeping the pesto in an airtight container, like a glass jar with a tight-fitting lid, can help prevent contamination and spoilage.
• Ingredient quality: Using fresh, high-quality ingredients can help extend the shelf life of your pesto.
• Personal tolerance: If you’re comfortable with a slightly stronger flavor, you might be able to use your pesto for a longer period.

To maximize the shelf life of your homemade pesto in the fridge:

• Store it in an airtight container, like a glass jar with a tight-fitting lid.
• Keep it refrigerated at a consistent temperature below 40°F (4°C).
• Use a clean utensil to scoop out the desired amount, and avoid cross-contamination with other foods.

The Shelf Life of Store-Bought Pesto: What You Need to Know

Store-bought pesto can be a convenient and delicious addition to many dishes. But how long does it last? The shelf life of store-bought pesto depends on several factors, including the storage conditions, packaging, and manufacturer’s guidelines.

Unopened Store-Bought Pesto:

• Fridge: Typically lasts for 6-12 months when stored in the refrigerator at a consistent temperature below 40°F (4°C).
• Room Temperature: Can last for 1-2 weeks when stored in a cool, dry place, away from direct sunlight.

Opened Store-Bought Pesto:

• Fridge: Typically lasts for 1-2 weeks when stored in an airtight container in the refrigerator.
• Room Temperature: Not recommended, as it can spoil quickly.

Tips for Storing Store-Bought Pesto:

• Always check the expiration date or “best by” date on the packaging.
• Store the pesto in its original packaging or transfer it to an airtight container to prevent contamination.
• Keep the pesto away from strong-smelling foods, as it can absorb odors easily.
• If you notice any signs of spoilage, such as mold, sliminess, or an off smell, discard the pesto immediately.

Freezing Pesto: How to Keep It Fresh for Months

Freezing is an excellent way to preserve pesto for a longer period. When done correctly, frozen pesto can retain its flavor and aroma for several months. Here’s how to freeze pesto and keep it fresh for months:

Preparing Pesto for Freezing:

1. Transfer to an airtight container: Spoon the pesto into an airtight container, such as a freezer-safe glass jar or a freezer bag.
2. Remove air: Remove as much air as possible from the container or bag to prevent freezer burn.
3. Label and date: Label the container or bag with the date and contents.

Freezing Methods:

1. Ice cube trays: Spoon the pesto into ice cube trays and freeze. Once frozen, transfer the pesto cubes to a freezer bag or airtight container for long-term storage.
2. Freezer bags: Divide the pesto into portions, place each portion in a freezer bag, and remove as much air as possible before sealing.

Freezer Storage:

• Storage temperature: Store the frozen pesto at 0°F (-18°C) or below.
• Shelf life: Frozen pesto can last for 6-9 months when stored properly.

Thawing and Using Frozen Pesto:

1. Refrigerator thawing: Place the frozen pesto in the refrigerator overnight to thaw.
2. Cold water thawing: Submerge the frozen pesto in cold water to thaw quickly.
3. Use immediately: Once thawed, use the pesto immediately, as it will not retain its quality if refrozen.

Pesto Storage Tips: How to Keep It Fresh at Room Temperature

While refrigeration and freezing are ideal for long-term pesto storage, there are times when you might need to store pesto at room temperature. Here are some tips to help keep your pesto fresh for a shorter period at room temperature:

Air-Tight Containers:

• Glass jars: Use glass jars with tight-fitting lids to prevent air from entering the container.
• Plastic containers: Choose airtight plastic containers with secure lids to keep air out.

Cool, Dry Place:

• Away from direct sunlight: Store the pesto in a spot that receives indirect sunlight or is shaded.
• Room temperature: Keep the pesto at a consistent room temperature between 65°F (18°C) and 75°F (24°C).

Other Tips:

• Keep it away from heat sources: Avoid storing pesto near ovens, stovetops, or radiators.
• Minimize exposure to air: Use a clean utensil to scoop out the desired amount, and avoid stirring or mixing the pesto excessively.
• Use within a few days: Pesto stored at room temperature typically lasts for 1-3 days. Use it within this timeframe for optimal flavor and texture.

Signs of Spoilage: How to Tell If Your Pesto Has Gone Bad

Pesto, like any other food, can spoil if not stored properly or if it’s past its expiration date. It’s essential to recognize the signs of spoilage to avoid consuming bad pesto, which can cause foodborne illnesses. Here are the common signs of spoiled pesto:

Visual Signs:

• Mold: Check for visible mold growth on the surface of the pesto. If you notice any mold, it’s best to discard the pesto immediately.
• Slime or sliminess: If the pesto has a slimy or soft texture, it’s likely gone bad.
• Separation: If the pesto has separated into distinct layers or has an unusual consistency, it may be spoiled.

Olfactory Signs:

• Off smell: If the pesto has a strong, unpleasant odor, it’s likely spoiled. Fresh pesto should have a pleasant, herby aroma.
• Sour or bitter smell: If the pesto smells sour or bitter, it may have gone bad.

Taste and Texture:

• Off taste: If the pesto tastes bitter, sour, or unpleasantly strong, it’s likely spoiled.
• Slimy or soft texture: If the pesto has a slimy or soft texture, it’s likely gone bad.

Other Signs:

• Expiration date: Check the expiration date on the packaging or the date you made the pesto. If it’s past the expiration date, it’s best to err on the side of caution and discard it.
• Storage conditions: If the pesto has been stored improperly, such as at room temperature for too long, it may have gone bad.

What to Do If Your Pesto Has Gone Bad:

• Discard it: If you notice any signs of spoilage, discard the pesto immediately to avoid foodborne illnesses.
• Make a fresh batch: If you’ve made a fresh batch of pesto, store it properly to prevent spoilage.

Conclusion: Maximizing the Shelf Life of Your Pesto

Pesto is a delicious and versatile condiment that can elevate many dishes. However, its shelf life can be limited if not stored properly. By following the tips and guidelines outlined in this article, you can maximize the shelf life of your pesto and enjoy it for a longer period.

Key Takeaways:

• Store homemade pesto in an airtight container in the fridge for up to 2 weeks or freeze for up to 6-9 months.
• Store-bought pesto typically lasts for 6-12 months in the fridge and up to 18 months in the freezer.
• Always check the expiration date and store pesto in a cool, dry place, away from direct sunlight and heat sources.
• Freeze pesto in airtight containers or freezer bags to preserve its flavor and aroma.
• Recognize the signs of spoilage, such as mold, slime, or an off smell, and discard the pesto immediately if you notice any of these signs.

FAQs

Q: How long does homemade pesto last in the fridge?
A: Homemade pesto can last for up to 2 weeks in the fridge when stored in an airtight container.

Q: Can I freeze pesto?
A: Yes, you can freeze pesto to preserve its flavor and aroma. Frozen pesto can last for up to 6-9 months.

Q: How do I know if my pesto has gone bad?
A: Check for signs of spoilage such as mold, slime, or an off smell. If you notice any of these signs, discard the pesto immediately.

Q: Can I store pesto at room temperature?
A: While it’s possible to store pesto at room temperature for a short period, it’s not recommended as it can spoil quickly. Instead, store it in the fridge or freezer to maximize its shelf life.

Q: How do I thaw frozen pesto?
A: You can thaw frozen pesto in the fridge overnight or by submerging it in cold water.

Q: Can I use expired pesto?
A: It’s not recommended to use expired pesto as it may have gone bad. Always check the expiration date and store pesto properly to ensure its quality and safety.