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o Go Bad? – Does It Go Bad?

The thing that I hate the most about store-bought pesto, and other refrigerated foods for that matter, is the size of the container.

More often than not a single container is more than I need for a single recipe. That leaves me with a half-open jar sitting in the fridge that I have to remember to use.

And at a certain point, the dreaded question comes up: does pesto go bad?

If you’d like to learn more about the shelf life, storage, and going bad of pesto, this article is for you. In it, we cover both the store-bought and the homemade variety. That means we’ve got you covered if you prefer to make this sauce yourself.

Fresh pesto
Fresh pesto

How To Store Pesto

There are two kinds of pesto available on the market. The first one is sold unrefrigerated, while the second one sits in the refrigerated section of the store. The same thing goes for other sauces and dips.

Let’s start with the former. Unrefrigerated pesto usually comes in jars or tins. Since it sits at room temperature at the store, you can store it at room temperature too, as long as it’s unopened.

Make sure it’s in a cool and dry area, away from sunlight and heat sources. Some sunlight and temperature changes won’t make it go bad in the container, but the quality after opening might not be that great.

Once you open the container, make sure it’s always sealed tightly and sits in the fridge when not in use. If the pesto comes in a tin, pour it into a sealable container before refrigerating.

The second variety of commercial pesto is the one that’s sold refrigerated. Storing it is not rocket science: the moment you get home with it, you put it into the fridge and keep it there.

Once you open the container, keep it always sealed tightly. If the original container isn’t sealable, pour the pesto into a small food container.

When it comes to homemade pesto, you should always keep it in the fridge and sealed tightly. If you expect to keep it in the refrigerator for a few days, add some olive oil on top before chucking it into the refrigerator. That will help it retain quality for a bit longer.

Pesto in an airtight container
Pesto in an airtight container

Can You Freeze Pesto?

If you would like to extend pesto’s shelf life, you can freeze it.

Please note that freezing pesto might result in a slight change of texture after thawing. The quality of this sauce after defrosting depends on the ingredients used to make the pesto and when it was frozen.

Also, please remember that in some dishes the altered texture will blend in well, while in others it will be noticeable.

In short, you need to do some testing to figure out if your pesto freezes well and how it works in your favorite dishes.

When it comes to how to freeze pesto, try freezing it in ice cube trays. This way you can easily thaw as much of the sauce as you need.

How long can you store pesto in the freezer, you ask? Buitoni recommends for 30 days only, but obviously, pesto in the freezer won’t spoil. Its quality will degrade over time, though, so the sooner you use it, the better.

Making pesto mortar and pestle
Making pesto mortar and pestle

How Long Does Pesto Last

Once again, let’s start with the shelf life of commercially packaged pesto sold unrefrigerated.

It usually comes with a best-by date on the label. The sauce, as long as you leave it unopened, can easily last a few weeks or maybe even months after that date. Of course, it won’t last in good quality as long as hot sauce, but it’s not like it will go bad a day or two after the date on the label.

Once you open the jar or tin, you can keep the sauce for about 7 to 10 days.

When it comes to the store-bought pesto sold in the refrigerated area, in most cases it has a use-by date on the label. The unopened sauce should retain good quality for maybe up to 5 to 7 days past that date. Sometimes it keeps fresh for longer, but that’s not a given.

Once you open the container, you should finish it within 5 to 7 days. The unrefrigerated pesto usually contains more preservatives than the refrigerated variety, so it also lasts longer after opening.

Homemade pesto lasts for 4 to 5 days in the fridge. Self-made pesto usually doesn’t contain any preservatives, so nothing is preventing it from going bad, hence the short period.

Of course, it would be ideal if you would take a mortar and a pestle and whip up fresh pesto for every dish. But as we all know, it’s an unrealistic scenario.

Related: How Long Does Homemade Salsa Last?
Related: How Long Does Alfredo Sauce Last?

Tip

If you would like to prepare a bigger batch, check out the freezing instructions earlier.

  Pantry Fridge
Pesto (sold unrefrigerated, unopened) Best-by + 1 – 3 months  
Pesto (sold unrefrigerated, opened)   7 to 10 days
Pesto (sold refrigerated, unopened)   Use-by + 5 – 7 days
Pesto (sold refrigerated, opened)   5 – 7 days
Pesto (homemade)   4 – 5 days

Please note that the periods above are rough estimates.

Fresh spaghetti with pesto and chicken
Fresh spaghetti with pesto and chicken

How To Tell If Pesto Is Bad

There are a few things to look out for when it comes to spoiled pesto.

Of course, there are the usual suspects, like mold or any other organic growth. Look for them on both the surface of the sauce and the inside of the container.

The second classic sign of spoilage is an off or rotten smell. If the sauce doesn’t smell fresh like it usually does, it’s past its prime, and you should discard it.

Next in line are the basil leaves. If they’ve changed color from green to brownish, it’s a good indicator that the pesto should be discarded.

Olive oil separated in pesto
Olive oil separated (and quite dense) in pesto – normal in homemade pesto after a few hours of storage

If everything about the sauce seems okay, it should be fine. Give a small amount a taste and decided based on that if it’s good enough to use. If not, discard it.

Last but not least, please remember that pesto spoils quickly. If you’re questioning if it’s okay to eat, it usually means it’s not. Trust your senses and throw the sauce out if that’s the case.

Same thing if it sits in the fridge for an extended period, like over a week for homemade pesto. Even if everything seems to be okay with it, it’s better to stay on the safe side and discard it. The first signs of it going bad are difficult to spot, so assuming it’s already off is the right choice here.

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Extra Information About how long does classico pesto last after opening That You May Find Interested

If the information we provide above is not enough, you may find more below here.

Does Pesto Go Bad?

Does Pesto Go Bad?

  • Author: doesitgobad.com

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  • Sumary: Here’s a guide to the shelf life of homemade and store-bought pesto. Learn how long pesto lasts, how to store it, and when to discard it.

  • Matching Result: Opened pesto will generally keep for about 5 to 7 days, assuming it has been continuously refrigerated. To further extend the shelf life of pesto, freeze it: …

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Does Pesto Go Bad - The Ultimate Guide To Pesto In 2022

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  • Matching Result: Briefly, pesto does go bad, no matter how you store it. Commercial pesto can stay fresh for up to 8 months after opening. Homemade pesto …

  • Intro: Does Pesto Go Bad?Despite being a versatile sauce, pesto decays much faster than you think. Over the years, many chefs and home cooks are continuously on the lookout to discover new methods for extending pesto’s shelf life. If you are here for the same purpose, I’m sure you won’t be disappointed. This article provides all relevant information about the shelf life of pesto and how to keep it fresh. What are you waiting for? Let’s get started! Briefly, pesto does go bad, no matter how you store it. Commercial pesto can stay fresh for up to 8 months after opening….
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How Long Does Pesto Last and How to Tell if It's Bad?

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  • Sumary: Here’s a guide on store-bought and homemade pesto. Learn all you need to know about the shelf life, spoilage signs, and storage of pesto.

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Does Pesto Go Bad? How Long Does Pesto Last in Fridge?

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How Long Does Pesto Last? Shelf Life, Storage, Expiration

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Does pesto go bad? - Cooking StackExchange

Does pesto go bad? – Cooking StackExchange

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  • Sumary: I have some basil pesto but I’m not sure how long its fridge life is. It is in a sealed container. How long does it last before it is not safe to eat anymore?

  • Matching Result: Commercial pesto certainly doesn’t keep that long in the fridge after it’s been opened. My current bottle says 2 …

  • Intro: Does pesto go bad? I have some basil pesto but I’m not sure how long its fridge life is. It is in a sealed container. How long does it last before it is not safe to eat anymore? apaderno7,04221 gold badges72 silver badges105 bronze badges asked Aug 3, 2011 at 15:17 4 I believe that the best indicator of freshness is the colour of the leaves. Once they turn from green to brown, it is all over for the pesto. To boost the ‘shelf-life’ of the pesto in the fridge, make sure that it is completely covered with olive oil…
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Frequently Asked Questions About how long does classico pesto last after opening

If you have questions that need to be answered about the topic how long does classico pesto last after opening, then this section may help you solve it.

How long is store-bought pesto good after opening?

So, Does Pesto Go Bad? Briefly, pesto does go bad, no matter how you store it. Commercial pesto can stay fresh for up to 8 months after opening. Homemade pesto, on the other hand, lasts for 3-4 months when freezed, but only 5-7 days when chilled in the fridge

Does pesto go bad after opening?

Pesto Shelf Life and Spoilage Summary Store-bought pesto easily lasts beyond the printed date, and it keeps for four days up to 2 weeks after opening, depending on the brand. Discard pesto that’s changed color, grows mold, or smells or tastes rancid. Do the same if it sits in storage way past what’s reasonable

How long does pesto sauce last in the fridge?

How Long Does Pesto Last? This easy basil pesto sauce will last up to 5 days in the refrigerator if stored in an airtight container. If you use the olive oil method shared above, the shelf life will be extended.

How long does Classico pesto last in fridge?

Once you open the jar or tin, you can keep the sauce for about 7 to 10 days. When it comes to the store-bought pesto sold in the refrigerated area, in most cases it has a use-by date on the label. The unopened sauce should retain good quality for maybe up to 5 to 7 days past that date.

What is in Classico pesto sauce?

Ingredients: BASIL, SOYBEAN OIL, GARLIC, PARMESAN CHEESE (MILK), OLIVE OIL, SALT, OREGANO, LACTIC ACID, CITRIC ACID, NATURAL FLAVOUR.

Where is Classico pesto made?

Classico – Pesto Di Genova – Basil, 218 Millilitre

In Genova, in the Northern region of Liguria, Fresh Basil is Combined with Garlic, Romano Cheese and Olive Oil to Create a Truly Authentic Pesto.

Are there pine nuts in Classico pesto?

This pesto has the texture of a classic usually made with pine nuts and basil. But there are no pine nuts in it. Flavor is a rich salty basil w parmesan cut to make you think you’re eating pine nuts, compared to Barilla pesto, which is basil and spinach.

Was Classico sauce discontinued?

It’s NOT discontinued… just hard, very hard, to find.

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