How Long Do Blueberries Last | Best Preserving Tips

Blueberries are touted as being one of the wonderful fruits of our times, packed with vitamins C and K and antioxidants for vibrant health, blueberries are so vital we should really be asking ourselves, “How Long Do Blueberries Last”.

Blueberries shelf life has many factors that come into play. 

The shelf life is dependant on how your prepare and store them:. 

• Freshly harvested blueberries will last for 1-2 weeks in the fridge.
• Properly stored blueberries will last 2-3 days at room temperature.  
• Cooked blueberries will last for approximately 4-5 days in the fridge.
• Frozen blueberries will last for 6-12 months in the freezer.  
• Pickled blueberries lasts for about 1-3 weeks if pickled, canned, and stored in a refrigerator properly.

You will learn all about just how long blueberries last, plus some tips on how to preserve blueberries to last longer.

Our suggestions are based on the premise that you properly follow the practices of food preservation.

As always, use your best judgment when trying to determine when something is no longer edible or safe to eat. 

1 - Shelf Life of Blueberries at Room Temperature

At their very best blueberries and other berries for that matter can only stay fresh at room temperature for up to 2 – 3 days maximum.

2- How Long Do Blueberries Last in the Fridge | Shelf Life of Blueberries in the Fridge

Properly storing blueberries is very important if you want to make them stay fresh for up to 1 – 2 weeks in the fridge.

To properly store them means to either to store the blueberries in a deep tightly sealed container or you use only a plastic wrap to protect your fruit.  

Follow these tips below will help extend their shelf life in the refrigerator:

Step 1: Pick the Good ones - Carefully remove the stems and leaves to infuse more shelf life into your fruit not forgetting to discard the soft, damaged or moldy fruits.

Step 2: Clean container – Use either a ceramic bowl or a basket-like container with small slits. Never use a metal container because discoloration or staining may damage your berries.

Step 3: Paper towels – Line the bottom and sides of your container with paper towels for absorbing moisture and avoid mold formation.Step 4: Avoid colder spaces – The two fridge areas to avoid are crisper and freezer compartments of the fridge should be avoided as they are too dry and can damage the blueberries. Opt for the mid or bottom sections of the fridge to store your blueberries.

3- Shelf Life of Blueberries in the Freezer | How Long Do Blueberries Last in the Freezer

Storing your berries in a freezer will add up to 6 – 12 months of shelf life to your blueberries.

You must follow a strict procedure for preparing your blueberries for freezing like the very steps shown below:

Step 1: Preparing the berries – discard the stems and leaves plus the damaged or moldy berries followed by laying out the berries using a single layer tray to prevent the berries from clumping or sticking together. Parchment paper should line the top of the tray to protect the berries.

Step 2: Place tray in the freezer – only 2 – 3 hours is needed to completely freeze the blueberries on the tray.

Step 3: Transfer to storage container – the tray is removed from the freezer and its contents are transferred to a resealable bag and taken back to the freezer.

• Mold – white or grey mold on the blueberries betray spoiled blueberries and should be discarded.  
• Damaged and soft – these indicate the fruit is overripe and should be discarded.
• Pungent smell – A strange smell that indicates that fruit should be thrown away.
• General appearance – a soft, wilted, moldy, or shriveled blueberry is fit only for the rubbish bin
• Color – once the color of blueberries that turn deep purple or dark red throw them away.
• Skin – when the skin of blueberries crack and issue liquid they are overripe and should be thrown away; pierced or cut blueberries permit bacteria to infiltrate and spread to other blueberries leading to whole scale spoilage of blueberries.
• Touch – Your blueberries should be plump and firm. If you touch a blueberry and it is not firm, it is overripe. Also, shriveled blueberries are rotten.
• Frozen spoilage – Even frozen blueberries can succumb to discolorations and dryness indicating the onslaught of freezer burn which, although not unsafe to eat, will definitely affect taste and texture.

6- How to Know if Blueberries are Bad or Spoiled

Blueberries should have some spring and density to them if you give them a gentle squeeze. 

They typically become softer as they age.  

Here are some other signs to tell if blueberries have gone bad:

• Mold – white or grey mold on the blueberries betray spoiled blueberries and should be discarded.  
• Damaged and soft – these indicate the fruit is overripe and should be discarded.
• Pungent smell – A strange smell that indicates that a fruit should be thrown away.
• General appearance – a soft, wilted, moldy or shriveled blueberry is fit only for the rubbish bin
• Color – once the color of blueberries that turn deep purple or dark red throw them away.
• Skin – when the skin of blueberries crack and issue liquid they are overripe and should be thrown away; pierced or cut blueberries permit bacteria to infiltrate and spread to other blueberries leading to a whole scale spoilage of blueberries.
• Touch – Your blueberries should be plump and firm. If you touch a blueberry and it is not firm, it is overripe. Also, shriveled blueberries are rotten.
• Frozen spoilage – Even frozen blueberries can succumb to discolorations and dryness indicating the onslaught of freezer burn which, although not unsafe to eat, will definitely affect taste and texture.

Other Methods To Make Blueberries Last

You can also dehydrate blueberries to then store or use in your baking later.  

You would need to use some type of food dehydrate it and cook it at 140°F until dried.

Dehydrating basically dries the blueberries of 90-95% of its water content. 

This slows down the rate at which blueberries spoils. 

Drying or Dehydrating Blueberries

Below are listed the steps in drying blueberries:

Step 1: Boil the blueberries – before placing in the oven, wash the blueberries with a general bath of cold water in a steamer placing a medium sized pot in the steamer and add water halfway to the top.

Add the blueberries when after the water boils and let them boil for about a minute.

Step 2: Cool the berries – remove the steamer and douse water over the berries to cool them and   halt the effect of boiling.

Step 3: Dry the berries – place the berries on paper towels to dry off for about 20 minutes

Step 4: Transfer berries – move about 1- 2 pounds of berries from paper towels to baking sheets on the baking trays making sure the blueberries form a single layer on one tray.

Step 5: Add trays to oven – Preheat the oven to 140°F and place the trays in the oven at 1-inch intervals from one another.

Step 6: Cook berries – cook the berries for 4-6 hours rotating the baking sheets and stirring the berries with a spatula every 30 minutes.

Step 7: Remove berries from oven – transfer the berries to the racks for cooling off to room temperature and then put berries into airtight containers for storing your blueberries.

Drying them still requires additional storage. You still need to store it in an airtight container to maximize its shelf life.

More info

Keep in mind that the information that we provided is based on recommendations from the FDA, our own observations, and the data from other sources such as the Ball guide we mentioned above.

Please do your own due diligence in determining your own set of guidelines.

This information provided is at your own risk.  Use your best judgment.  We did our best to present you with the best information we had available at the time of this writing.

The shelf lifetimes are based on the following conditions of your storage area:

• Room temperature of 60°- 70°F
• Refrigerator temperature of 35° – 40° F
• Freezer temperature of 0°F or lower.

Check out our guide on ways of preserving food for more information on some of the techniques.