First, the variety is not good
Although they are all lotus roots, the 7-hole and 9-hole lotus roots are different varieties. The 7-hole lotus root is also called safflower lotus root. The flower is pink lotus root. This kind of lotus root is mostly planted in the south. After cutting, it has 7 holes. 9-hole lotus root is also called white lotus root. Most of the lotus flowers are white and planted in the north. After cutting, you can see 9 holes. Some white lotus roots have 11 holes, which is commonly known as crisp lotus root.
Second: the appearance is different
The shape of 7-hole lotus root is relatively short and thick, with rough skin and sporadic spots, and its color is yellowish. The color of 9-hole lotus root is whiter than that of 7-hole lotus root, and its appearance is smooth and clean.
Third: different taste
The 7-hole lotus root grows mostly in the pond with low water content and high starch content. Especially after cooking, it can pull out long filaments. The "broken lotus root" is just from the 7-hole lotus root. The 9-hole lotus root has high water content, but it can be eaten raw directly with low starch content.
Fourth: different approaches
Because the taste of the two kinds of lotus root is different, so the practice is not the same, in order to taste delicious lotus root, we need to cook according to the variety of lotus root. 7-hole lotus root is suitable for stewing or steaming, such as sweet scented osmanthus and glutinous rice lotus root, lotus root and sparerib soup, but not for cold mixing and stir frying. The lotus root with 9 holes is suitable for stir frying or cold mixed, such as stir fried lotus root slices and cold mixed lotus root.