Can you add salt to Toona sinensis after blanching?

Toona sinensis buds contain more nitrate and nitrite, which may lead to poisoning or cancer. Toona sinensis should be boiled in boiling water for about a minute before eating. March of the lunar calendar is the listing season of Toona sinensis. Toona sinensis bud is crisp, tender, sweet and rich in nutrition, which can be called a precious vegetable on the table. But when you eat it, it's exquisite.

Toona sinensis bud contains more nitrate and nitrite, which may cause poisoning or cancer if eaten improperly. It is important to note that the buds of Toona sinensis should be picked before Grain Rain, and the ones with thick leaves and red edges are the top grade. After Grain Rain, the fiber of Toona sinensis leaves is aging, the taste is not good, the nutritional value will be greatly reduced, and the nitrite content will increase. The data show that the nitrite content in fresh Toona sinensis buds is low, with an average of about 30 mg/kg, while that in old leaves is as high as 53.9 mg/kg. Therefore, there is a folk proverb that "Spring buds are as tender as silk before the rain, and trees grow after the rain". Toona sinensis buds should be eaten early and tender.

Toona sinensis should be blanched in boiling water for about 1 min before eating, which can remove more than two thirds of nitrite and nitrate, and at the same time, it can better preserve vitamin C and its green and fragrant quality.