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The best way to keep basil fresh is to treat it like a bouquet of flowers, not a bag of leafy greens.
You see, basil hates the cold and is incredibly thirsty, so keeping basil fresh really comes down to giving it water and protecting it from chilly temperatures.
If you’ve ever wondered how best to keep basil fresh from your garden or the grocery store, the solution is simpler than you might think.
In this post, we will break down the best techniques to keep basil fresh for up to two weeks, and we’ll also cover the common mistakes that cause this herb to turn into a black, slimy mess.
Let’s dive into the world of this fragrant herb so you can enjoy that vibrant flavor for much longer.
Why The Best Way To Keep Basil Fresh Involves Water
The absolute best way to keep basil fresh is to store it upright in a glass of water, just like you would with a bouquet of flowers.
This method works wonders because basil stems are hollow and they drink water rapidly through them.
When you cut a basil stem, it immediately tries to suck up moisture to feed the leaves.
So, to keep basil fresh, you need to give those stems a direct water source.
1. The Stem Trimming Technique
Before you place your basil in water, you should always trim the ends of the stems at a 45-degree angle.
This fresh cut opens up the plant’s capillaries, allowing it to drink water much more efficiently.
If you skip this step, the bottom of the stem might have already sealed over, which will prevent water from traveling up to the leaves.
Trimming the stems every couple of days is also a great way to keep basil fresh for an extended period.
2. The Right Water Temperature
To keep basil fresh, you need to use room temperature water, not ice-cold water.
Basil is a tropical herb that thrives in warmth, and shocking it with freezing water can actually cause the leaves to wilt faster.
Fill a jar or a tall glass with about an inch or two of lukewarm water.
Make sure the leaves are completely dry and that only the stems are submerged in the water.
Any leaves sitting in the water will rot quickly and ruin the whole bunch.
3. The Plastic Bag Covering Method
Once your basil is in the water, the next step to keep basil fresh is to cover the leaves loosely with a plastic bag.
This creates a humid greenhouse effect around the leaves, which prevents them from losing moisture too quickly.
You can use a clear produce bag or even a plastic grocery bag, just make sure it isn’t sealed airtight.
Leaving a small opening for air circulation is essential because basil also needs to breathe.
With this method, you can keep basil fresh for up to two weeks on your kitchen counter.
How To Keep Basil Fresh In The Refrigerator
Many people think you should keep basil fresh in the fridge, but that is often where things go wrong.
Basil is extremely sensitive to cold and it will quickly develop dark spots and a bitter flavor when stored below 50°F (10°C).
However, if you live in a very hot climate, you can still use the fridge to keep basil fresh if you do it correctly.
1. The Damp Paper Towel Method
If you absolutely must refrigerate basil, the best way to do so is to wrap it in a slightly damp paper towel.
Lightly mist the paper towel with water, just enough to make it moist, not soaking wet.
Gently lay the basil leaves in a single layer on top of the damp towel, then roll it up loosely.
Place this bundle inside a resealable plastic bag and push out as much air as possible before sealing it.
This technique helps to keep basil fresh by providing moisture without letting the leaves sit in water.
2. Avoid The Coldest Spot In The Fridge
Even when using the paper towel method, you should never place basil in the back of the fridge or near the cooling vents.
Instead, store it in the door or in the crisper drawer where the temperature is slightly warmer and more stable.
This will significantly help you keep basil fresh for a few extra days, although it still won’t last as long as the countertop method.
Just remember that the cold air will eventually cause the basil to wilt, so use it as quickly as possible.
Alternative Ways To Keep Basil Fresh For Longer
If you have a massive harvest and you want to keep basil fresh for months instead of weeks, you need to change your approach.
The water method is perfect for short-term storage, but for long-term preservation, you have a few other winning options.
1. Freezing Basil In Olive Oil
Freezing is an excellent way to keep basil fresh and full of flavor for up to six months.
The best way to do this is to puree the basil leaves with a good quality olive oil in a food processor.
Pour this mixture into ice cube trays and freeze it.
Once the cubes are solid, pop them out and store them in a freezer-safe zip-lock bag.
You can then just toss a basil cube directly into soups, sauces, or pasta dishes whenever you need a burst of flavor.
2. Blanching And Freezing Whole Leaves
Another way to keep basil fresh is to blanch the leaves before freezing.
Drop the clean leaves into boiling water for just two seconds, then immediately transfer them to an ice bath.
This stops the enzymes that cause browning and keeps the vibrant green color intact.
Pat the leaves completely dry, lay them flat on a baking sheet, and freeze them individually.
Once frozen, transfer them to a container with parchment paper between layers to prevent sticking.
3. Making Basil Pesto To Preserve It
The most delicious way to keep basil fresh is to turn it into pesto.
Pesto acts as a natural preservative because the oil coats the leaves and prevents oxidation.
Make a large batch of pesto, spoon it into small jars, and top each jar with a thin layer of olive oil to seal out the air.
This will keep in the fridge for a couple of weeks, or you can freeze the jars for up to a year.
This is definitely the tastiest way to keep basil fresh and usable all winter long.
Common Mistakes That Ruin Your Fresh Basil
To truly understand how best to keep basil fresh, you also need to know what not to do.
Many home cooks accidentally destroy their basil with these simple errors.
1. Washing Basil Too Early
Never wash basil until you are ready to use it.
Extra moisture on the leaves is the number one cause of rot.
If your basil is dirty, gently wipe the leaves with a dry paper towel instead of rinsing them under the tap.
Excess water sitting on the leaves will break down the cell walls and turn it into black mush quickly.
2. Chopping Basil With A Knife
While this isn’t a storage issue, chopping basil with a metal knife can bruise and oxidize the leaves.
The best way to avoid that is to tear the leaves by hand or use kitchen shears.
This is also important because if you chop a large bunch, the damaged edges will start to rot faster if you try to store the chopped herb.
Always tear or chop right before adding to your meal.
3. Storing Basil With Fruits
Never store basil in the same container as apples, bananas, or tomatoes.
These fruits release ethylene gas, which speeds up the ripening process and causes the basil leaves to yellow and wilt prematurely.
To keep basil fresh, give it its own dedicated space away from other produce.
Your basil will thank you with a longer shelf life.
So, How Best To Keep Basil Fresh?
The best way to keep basil fresh is to store it on the counter in a jar of water with its stems trimmed.
This mimics its natural growing environment and keeps the leaves hydrated and flavorful for up to two weeks.
You can keep basil fresh in the fridge using the damp paper towel method, but only if you absolutely have to.
And for long-term storage, freezing in oil or making pesto will keep basil fresh for months without losing its punch.
Now you know exactly how best to keep basil fresh, so go ahead and buy that extra bunch without worrying about waste.
Enjoy that sweet, peppery aroma in your cooking every single day.