Home preservation methods for blueberries

Blueberries can be stored using methods such as refrigeration, freezing, and room temperature drying, depending on the duration of storage and consumption plan. When storing blueberries at home, attention should be paid to avoiding damp, squeezed, and high-temperature environments to prolong their freshness and nutritional value.

1. Refrigerate storage

Unclean blueberries are placed in a breathable food box, covered with a layer of kitchen paper to absorb moisture, and the refrigeration temperature is controlled at 0-4 degrees Celsius. It is recommended to consume blueberries stored in refrigeration within 3-5 days and avoid mixing them with other strongly scented foods. If white frost or softening is found on the surface, it should be consumed as soon as possible.

2. Frozen storage

Blueberries that have been cleaned should be thoroughly dried, spread flat on a tray, frozen for 2 hours to shape, and then placed in a sealed bag. After venting the air, they can be frozen and stored for 3-6 months. Frozen blueberries are suitable for making milkshakes or baking. After thawing, the taste becomes soft but does not affect their nutritional value. Be careful to avoid repeated thawing and freezing.

3. Store at room temperature and dry

Unclean blueberries can be stored in a cool and ventilated place for 1-2 days, and should be spread out to avoid stacking. A humid environment can easily lead to mold growth, and food desiccants can be placed to absorb moisture. This method is only suitable for short-term storage and is not recommended for use in hot weather.

4. Processing and preservation

Blueberries can be made into fruit sauce, dried fruit, or soaked in fruit wine to extend their shelf life. Making jam requires high-temperature sterilization and sealing, and refrigeration storage for about one month; Dried fruits should be stored against moisture; When making wine, it is important to disinfect the container and store it in a cool place for at least one year.

5. Vacuum sealing

uses a vacuum machine to remove the air inside the packaging. Refrigerated storage can be extended to 7-10 days, and frozen storage can last up to 8 months. Vacuum sealing can effectively prevent oxidation and bacterial growth, but it is necessary to ensure that the blueberry surface is completely dry to avoid condensation after sealing. Blueberries are rich in anthocyanins and vitamin C. During storage, efforts should be made to minimize nutrient loss. Regardless of the storage method used, it is recommended to prioritize consuming fresh blueberries for optimal taste and nutrition. Blueberries stored in different ways can be divided into small portions and used as needed in daily life. Gently rinse with running water during cleaning, and remove the fruit stem before consumption. Eating with yogurt or oats can increase dietary fiber intake, but diabetes patients need to pay attention to controlling the single intake.