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

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More regularly than no a single container is much more than I require for a solitary recipe. That leaves me with a half-open jar sit in the fridge that I have to remember come use.

And at a particular point, the dreaded concern comes up: go pesto go bad?

If you’d prefer to learn an ext about the shelf life, storage, and going poor of pesto, this post is because that you. In it, us cover both the store-bought and also the homemade variety. That means we’ve gained you extended if you like to make this sauce yourself.

Fresh pesto

How To keep Pesto

There are two kinds of pesto obtainable on the market. The first one is sold unrefrigerated, if the second one sit in the refrigerated section of the store. The very same thing walk for various other sauces, choose salsa.

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

Make certain it’s in a cool and dry area, far from sunlight and also heat sources. Part sunlight and temperature alters won’t do it go bad in the container, but the quality after opening might not be that great.

Once you open up the container, make sure it’s always sealed tightly and sits in the fridge as soon as not in use. If the pesto come in a tin, to water it into a sealable container before refrigerating.

The second variety of commercial pesto is the one that’s sold refrigerated. Storing the is no rocket science: the moment you obtain home with it, you placed it into the fridge and keep the there.

Once you open the container, store it always sealed tightly. If the original container isn’t sealable, to water the pesto right into a little food container.

When it pertains to homemade pesto, friend should always keep it in the fridge and also sealed tightly. If you expect to save it in the refrigerator because that a few days, include some olive oil on top prior to chucking it right into the refrigerator. The will help it retain high quality for a bit longer.

Pesto in one airtight container

Can You freeze Pesto?

If girlfriend would like to expand pesto’s shelf life, you deserve to freeze it.

Please keep in mind that freeze pesto might result in a slight change of texture after thawing. The high quality of this sauce after defrosting relies on the ingredients supplied to make the pesto and also when it was frozen.

Also, you re welcome remember that in some dishes the transformed texture will blend in well, while it others it will be noticeable.

In short, you need to do some experimentation to number out if her pesto freezes well and also how it works in her favorite dishes.

When it pertains to how to freeze pesto, try freezing that in ice cube trays. This means you can quickly thaw as lot of the sauce together you need.

How long deserve to you store pesto in the freezer, friend ask? Buitoni recommends for 30 job only, yet obviously, pesto in the freezer won’t spoil. Its quality will degrade over time, though, therefore the sooner you usage it, the better.

Making pesto mortar and pestle

How long Does Pesto Last

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

It generally comes v a best-by date on the label. The sauce, as long as you leaving it unopened, can conveniently last a few weeks or maybe even months after the date. That course, that won’t last in good quality as lengthy as warm sauce, but it’s not choose it will certainly go negative a work or two after the date on the label.

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

When it comes to the store-bought pesto sold in the refrigerated area, in most cases it has a use-by day on the label. The unopened sauce should retain an excellent quality for perhaps up to 5 come 7 days previous that date. Occasionally it keeps fresh because that longer, but that’s not a given.

Once you open up the container, girlfriend should finish it in ~ 5 come 7 days. The unrefrigerated pesto contains more preservatives the the refrigerated variety, therefore it also lasts for a shorter duration after opening the bottle.

Homemade pesto lasts because that 4 come 5 work in the fridge. Self-made pesto commonly doesn’t contain any type of preservatives, therefore nothing is staying clear of it from going bad, thus the brief period.

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


If girlfriend would favor to prepare a enlarge batch, inspect out the freezing instructions earlier.

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 over are stormy estimates.

Fresh spaghetti with pesto and chicken

How to Tell If Pesto Is Bad

There room a couple of things come look out for as soon as it comes to spoiled pesto.

Of course, there room the usual suspects, choose mold or any type of other necessary growth. Look because that them ~ above both the surface of the sauce and also the inside of the container.

The second classic sign of spoilage is an turn off or rotten smell. If the sauce doesn’t odor fresh favor it normally does, it’s previous its prime, and you have to discard it.

Next in line room the basil leaves. If they’ve changed shade from green to brownish, it’s a an excellent indicator the the pesto must be discarded.

Olive oil be separated (and rather dense) in pesto – normal in homemade pesto after ~ a few hours of storage
If everything around the sauce appears okay, it must be fine. Give a tiny amount a taste and decided based on that if it’s an excellent enough come use. If not, discard it.

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

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Same point if it sit in the refrigerator for an extensive period, choose over a week for homemade pesto. Even if whatever seems to be okay through it, it’s much better to stay on the for sure side and also discard it. The first signs of that going negative are difficult to spot, for this reason assuming it’s already off is the right an option here.