How to Freeze Blueberries with Sugar for the Winter: A Blueberry Puree Recipe + 5 Step-by-Step Photos

Frozen blueberries are a great winter preserve. They can be taken out at any time and used to decorate and flavor desserts and drinks. Another advantage of this preserve is that preparation takes minimal time and effort. A few blender movements and it's time to freeze.

Nutritional value per serving

128 kcal

Proteins: 1.1 g
Fats: 0.6 g
Carbohydrates: 7.6 g

*Nutritional value is calculated per 100g of ingredients

Total time: 20 min
Time in the kitchen: 20 min
Complexity:

It will work even if you're making it for the first time. Not just this dish, but your first time ever.
Number of servings: 1

Feel free to vary the amount of sugar in this recipe. A 1:3 ratio to berry yields a moderately sweet puree while extending its shelf life. Those with a sweet tooth can safely add more sweetener.

However, I strongly advise against adding any spices to berries pureed for freezing. They will impart their aroma to the puree throughout its shelf life. This could result in an overly spicy product. It's better to use the spices directly when preparing desserts.

Recipe with step-by-step photos

Freezing blueberries for the winter, ground with sugar

Ingredients

Servings

Blueberry

1 kg
Sugar

300 G

Preparation

Step 1

Transfer the blueberries to a wide bowl, ensuring they don't take up all the space. Since they have fairly thick skins, rinse them in a separate bowl and let them drain beforehand.

Step 2

Add granulated sugar and grind with an immersion blender at medium speed.

Step 3

Do not beat for too long so that the puree is mixed with pieces of berries.

Step 4

Place the vacuum-sealed bag in a bucket or bowl of similar size and fill it with blueberry puree using a ladle. This will ensure the mixture is evenly distributed throughout the bag to the very top and prevent air from getting in. This will ensure the resulting preserves are free of ice particles.

Step 5

We tightly close the vacuum bags and send them to the freezer to freeze.

What is the shelf life of blueberries with sugar?

Regular beet and brown cane sugar act equally as preservatives. They extend the shelf life of blueberry puree to one year. During this entire time, the berries will retain their flavor and nutritional properties.

A life hack for all your preparations

To keep track of exactly when the berries were packaged, tape strips of paper and label them with the date and name of the frozen items. This will allow you to accurately track the dates and use all your winter preserves promptly.

Can other sweeteners be used?

Not recommended. Honey, although it has the same preservative properties as sugar, only freezes at -30 degrees Celsius. In a regular freezer, it will remain semi-liquid. It will simply be less convenient to store.

Most sugar substitutes are not preservatives. They will sweeten the blueberries, but I can't guarantee they will retain their flavor for a full year. Expect to keep them for about six months.

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