Correct cleaning methods of blueberries and how to keep them fresh after picking.

1. Cleaning method of blueberries: firstly, put blueberries into a fruit basket with holes, then wash them under

Correct cleaning methods of blueberries and how to keep them fresh after picking.

1. Cleaning method of blueberries: firstly, put blueberries into a fruit basket with holes, then wash them under running water, gently shake them during the cleaning process, so as not to damage the epidermis as much as possible, then soak them in salt water/rice washing water/starch water/alkaline water/baking soda water/fruit and vegetable cleaning agent, and finally rinse them with clear water. 2. Preservation methods of blueberries: Freshly picked blueberries can be preserved in many ways, such as cold storage, normal temperature preservation, freezing preservation, waxing preservation, vacuum preservation, calcium ion preservation and so on. , depending on the actual situation.

First, the correct way to clean blueberries

1, rinse with clean water

Put blueberries into a perforated fruit basket, then rinse the fruit basket under running water, shaking it gently during the washing process, and try not to break the skin. The cream on the surface of blueberry is edible and nutritious, so don't rub it off hard when cleaning.

soak

In order to prevent pesticide residues in purchased blueberries, generally, clean blueberries can be soaked in salt water/rice washing water/starch water/alkaline water/baking soda water/fruit and vegetable cleaning agent 15-20 minutes. In the process of soaking, you can gently stir blueberries several times by hand, and then rinse them with clear water.

Second, how to keep blueberries fresh after picking.

1, refrigerated

Put the picked fresh blueberries in a plastic box with holes, and then store them in a refrigerator at 1-3℃.

2. Store at room temperature

Blueberries should be kept fresh at room temperature, and the indoor temperature should be controlled at about 24℃, which can prolong the shelf life of blueberries and will not deteriorate too quickly.

3. Freeze and keep fresh

Put the fresh blueberries directly into the fresh-keeping bag, be careful not to wash them clean, and then put them in the freezer of the refrigerator for preservation, which greatly reduces the occurrence of deterioration or corruption.

4. Preservation of wax

Wax coating is one of the fast-developing preservation technologies in recent years, among which chitosan film is widely used and has good effect.

5, vacuum preservation

First, dry blueberries in the shade in a ventilated place, and then store them in vacuum. The blueberries treated in this way are very clean and hygienic.

6, calcium ion preservation

Calcium treatment can slow down the decrease of soluble solids, hardness, vitamin C and titratable acid content during storage.