Here's how to whiten white beans:
Choose fresh, healthy white beans. Make sure the beans are firm and brightly colored, and avoid choosing old, yellow, or pest-resistant beans. Because fresh beans are more conducive to drying and whiter in color.
Soak the selected beans in clean water for 10-15 minutes, then rinse them off with running water. When washing, gently scrub the surface of the beans to remove any impurities or pesticide residues.
Blanch the washed white beans in boiling water for 1-2 minutes, then quickly remove them. Blanching removes some of the moisture from the beans, making them easier to dry and also preserves the color of the beans.
Place the blanched beans on a clean bamboo mat or drying net to dry. In order to maintain the white color of the beans, you should avoid direct exposure to the sun and choose a time when the sun is softer to dry. Also, use shade nets or gauze to cover the beans to prevent fly bites.
During the drying process, turn the beans every few hours to ensure that the beans dry evenly. Stir gently to avoid breakage of the beans.
After drying, the beans should be folded lightly without water oozing, and the color should be pure white. If you find that the beans still contain moisture, you can extend the drying time or re-dry them after proper moisture.
Storage: Sun-dried white beans should be kept in a dry, ventilated place to avoid moisture and insect damage. It is best to pack the beans in an airtight bag or airtight container to prolong their shelf.
In addition, there are a few things to note:
During the whole drying process, avoid the pollution of dust and impurities to ensure the cleanliness of the beans.
If you encounter a rainy day, you can choose to use a dryer for drying, but be careful not to get too high a temperature to prevent the beans from changing color.
Sun-dried beans should be stored in a well-sealed container and placed in a cool, dry place to prevent moisture, mold and insect damage.
Before eating, the dried beans should be soaked in water to restore their original color and taste.
The white beans dried through the above steps are not only whiter in color, but also have a better taste and quality. At the same time, it is also necessary to pay attention to safety and hygiene issues to ensure that they are not contaminated by harmful substances during drying and storage.