Are round sweet potato leaves better or are five-cornered ones better? How to make sweet potato leaves without turning black

Sweet potato leaves are the leaves of sweet potatoes. They are eaten as a vegetable in many places, and are also used to feed pigs in some places. There are two types of sweet potato leaves: round leaves and pointed leaves. The pointed leaves also have different colors. So which sweet potato leaves are more delicious, the round leaves or the pointed leaves? How to fry sweet potato leaves without turning black?

Which sweet potato leaf is better, the round one or the five-cornered one

Round-leaf sweet potato is an ordinary sweet potato, which is large, has many vines and lush leaves, but it is not delicious and basically no one buys this kind of sweet potato on the market. It is mainly grown in rural areas for pig feed, but its petioles and young shoots can be used for cooking.

Pointed-leaf sweet potatoes come in five-branched and three-branched varieties, and are divided into green and purple-red in color. The green, branched, pointed-leaf sweet potatoes have yellow hearts, and are the sweet potatoes that are often roasted and sold in the market, as well as sweet potato strips and dried sweet potatoes. This type of sweet potato has few vines and the potatoes are not big. It requires careful attention to soil and fertilizer to grow them, and they are not as easy to grow as round-leaf sweet potatoes.

The purple sweet potato has leaves of the same shape with a slight red tint. This kind of sweet potato is also delicious and easy to sell. The planting requirements are similar to those of the yellow-heart red one, and it has fewer vines.

Heart-shaped sweet potatoes (some are three-pronged). These are sweet potatoes that are grown specifically for eating their sprouts. It seems that they do not grow sweet potatoes, or even if they do, they are very few and not tasty. However, the sprouts are excellent vegetables, soft and tender. They grow very quickly after being picked. Every time you pick them, you need to apply water and fertilizer, and they will grow again in three to five days. Planting two square meters of such sweet potatoes is enough to provide vegetables for a family of three or four.

How to make sweet potato leaves not turn black

There are two types of sweet potato leaves, one is high pink, and the other is low pink. The high pink will turn darker. The low pink generally changes less, and the color changes less under strong high temperature.

When cooking, remember to use a hot pan and cold oil to stir-fry quickly. Another thing is that adding cooking wine will slow down the oxidation of chlorophyll in the vegetables.