Blueberries are so delicious that you want to enjoy them all year round. Learn how to properly harvest, store, and dry blueberries here.
Perhaps you still remember the blue fingers and mouth when harvesting juicy blueberries (Vaccinium) in sparse forests? Compared to the fruits of the wild bilberry (Vaccinium myrtillus), newer cultivars of cultivated bilberries (Vaccinium corymbosum) have a light-colored flesh and are therefore not quite as colored strong. The harvest of cultivars is also far more productive due to the larger fruits. If you want to pick the sweet blueberries yourself, you should definitely grow them in your own garden. We explain how best to go about picking the blueberries and what methods of preservation have proven themselves.
Picking Blueberries: When are they ripe?
Ripe blueberries can be recognized by the dark blue stems. The fruit development of the blueberry takes about 70 to 100 days, depending on the variety. Due to the rapid ripening of the fruit, it has to be picked several times within a few weeks. The first harvest usually brings the largest berries. If you plant early and late varieties, you can even extend the blueberry season. This means you can harvest fresh blueberries from the beginning of July to September. Depending on the variety and stage of development of the plants, a total harvest of around 4 to 5 kg of berries per bush is possible.
Harvest blueberries correctly
Blueberries should be harvested when they are fully ripe, because only then will they develop their full aroma. Ripe fruit should be easy to detach from the stem. Roll each berry off the grape with your thumb and catch it in your open hand. Then you can collect the berries in a bowl. These are very sensitive to pressure, so it's best to divide your harvest into several collection vessels to avoid squeezing them too much.
Tip: The juice from forest blueberries is particularly strong in color. The black color on lips and teeth can be restored very well with lemon juiceremove.
Preserving and storing blueberries/blueberries
Blueberries only last about a week in the fridge. It is best to put the freshly harvested blueberries in a sealable container and only wash them immediately before consumption. In addition, you should definitely sort out berries with bruises and mold to avoid spoiling the other fruits. Because of their thicker skin, cultivated garden blueberries last a little longer than wild forest blueberries. However, if you want to have some of your harvest longer term, you should consider how to preserve the he althy blueberries. In addition to juicing, drying and freezing have proven to be particularly useful for preserving blueberries.
Drying Blueberries
In principle, you can spread out the blueberries to dry them in the air, as long as it is warm enough and there is enough air exchange. However, drying is particularly quick and effective in the dehydrator or in the oven. You can dry fully ripe fruit in the oven at 50 °C circulating air. The berries would dry faster at higher temperatures, but many vitamins would also be lost. Also, make sure the moisture can escape by sticking a wooden spoon in the oven door. Depending on the method, the drying process can take a few hours to several days. It is best to store the completely dried blueberries in airtight jars.
Freezing Blueberries
Freezing blueberries should be done as soon as possible after harvest. If this is not possible, the berries can also be stored in the fridge for a few days, but they should still be firm for freezing. Wash the fresh berries briefly, drain well and dry on kitchen paper. In order to be able to portion the blueberries later, it is advisable to pre-freeze the berries. To do this, they are spread out on a baking sheet or plate and placed in the freezer for a few hours so that they do not stick together. In order to keep them as space-saving as possible, you should later transfer the frozen blueberries to freezer bags or plastic containers. Frozen blueberries can be kept for up to a year and can therefore be processed gradually.
Blueberries: Uses in the kitchen
Blueberries are not called the local "superfood" for nothing. The he althy blueberries are rich in vitamin C, iron, calcium and potassium. They also contain antioxidant polyphenols and digestive fibers. In addition to being enjoyed fresh, the fresh berries can be easily processed into dairy products (milk, yoghurt, quark) for shakes and desserts.
Dried blueberries can be added to breakfast cereal or tea blends. You can process fresh or already frozen blueberries into compote or juice. In combination with other fruits - such as strawberries (Fragaria) - sweet jams can also be made. In contrast to the raspberry (Rubus idaeus) or blackberry (Rubus fruticosus), the blueberry has only very small seeds, which are often not very annoying when chewing to be felt. It is therefore not necessary to pit the fruit before processing.
Friends of sweet dessert cuisine can use the blue fruits to bake delicious blueberry cakes (small pancakes), cakes or tarts. The American blueberry muffins, which are also available in many coffee shops, are particularly popular. If you prefer something with a higher percentage, you can of course also process the blueberries into fruit wine, liqueur or brandy.
If you're looking to grow and harvest some special blueberry varieties, be sure to check out our special variety article.