2-3 minutes. Lotus roots are usually cut into thin slices for consumption, so it doesn’t take too long to blanch them, just 2 to 3 minutes. Moreover, food like lotus root tastes more delicious after being blanched. Immediately after blanching, take it out and rinse it in cold water so that the lotus root slices will be crisper. There are many ways to make lotus root slices, including cold lotus root slices, fried lotus root boxes, fried lotus root slices, etc.

The reason for the sourness of lotus root

If it is fresh, the sour taste should not be obvious. If it's not fresh, the sour taste will be obvious. This is because lotus root contains acidic substances such as iron, carotene, thiamine, niacin, and ascorbic acid. However, if the sour taste is particularly obvious or the taste is already bad, it is best not to eat it because it may have gone bad.