Why does shepherd's purse taste better after frost? Why does frost vegetables taste better?

There is a Chinese idiom "Frosted eggplants wilt", which means that the skin of frost-bitten eggplants will become soft and then wilt. In fact, during the Frost Descent, vegetables that have been frosted generally taste particularly good. Vegetables such as cabbage, radish, and spinach will become sweet. What is the reason for this? Let's learn about it together.

Why does shepherd's purse taste better after frost?

There is a saying in the countryside that shepherd's purse is fresh at both ends. The shepherd's purse that matures in autumn is sown in spring. Although it is tender when it first matures in autumn, it is too hot in early autumn. Although the shepherd's purse is tender, it tastes bland and not delicious. After the frost, the heat turns to cold and the freshness of the shepherd's purse can be stimulated, and it tastes fresh and delicious!

There are many ways to eat shepherd's purse, such as three-fresh shepherd's purse tofu soup, shepherd's purse and fresh meat dumplings, shepherd's purse omelette, shepherd's purse pork buns, etc., all of which are very simple to prepare.

The reason why vegetables taste better after frost is because the temperature is low after frost, which inhibits the rapid growth of vegetables. This helps the vegetables accumulate nutrients, so vegetables taste better after frost.

Why are frost-covered vegetables delicious?

There is a saying among the people that "vegetables that have been frosted taste better". This is because after the frost, the starch in the vegetables is converted into glucose by the action of amylase, and glucose can be dissolved in water, so there is sugar in the cell fluid, so the vegetables can withstand the frost and taste sweeter. In fact, this is the result of vegetables adapting to the environment. The sugar content of vegetables that have been frosted increases, so the vegetables taste better after the frost.

What vegetables can be grown in the greenhouse after frost

After the Frost Descent, the temperature gradually becomes colder and autumn is about to transition to winter. Many vegetables are not suitable for outdoor cultivation, but they can be grown in greenhouses.

Cold sheds built with bamboo and wood structures and plastic shed films are the main way to grow off-season vegetables in the north. They have excellent lighting performance but poor heat preservation. They are suitable for growing vegetables with strong cold resistance, such as common leafy vegetables such as spinach, coriander, garlic sprouts, lettuce, lettuce, celery, etc. The growth cycle of these vegetables is also relatively short, but they need to be germinated in advance to increase the germination rate and shorten the growth cycle.

The general method of germination is to refrigerate and soak in nutrient solution, and soak or refrigerate for 24 hours.