To answer this question, we must first talk about lotus seeds, because different lotus seeds cook at different times. There are three kinds of lotus seeds in China, namely white lotus, red lotus and rubella lotus seed.

White lotus seeds are lotus seeds that are harvested and peeled and dried after harvesting and peeling and peeling when they reach maturity of 7. This lotus seed is very tender and cooks for the shortest time.
Red lotus seeds are a type of lotus seed that retains more seed coat parts than white lotus seeds. Because of the extra coat, it takes longer to cook than the white lotus seeds.
Ruby lotus seeds are also called Xianglian, is the lotus seeds grow to ten ripe harvest, and then the skin is ground off after the heart of the dried lotus seeds, this lotus seed is relatively old, so the boiling time is the longest time to cook among the 3 kinds of lotus seeds.
So how long can the lotus seeds be boiled? Let's take the white lotus seed as an example.
1, lotus seeds do not need to soak in water before cooking, soaked in water lotus seeds are not sticky, as long as you clean it slightly before cooking, you can get off the pot.
2, if you use a pressure cooker for only 15 minutes, steamer for 1 hour, stew for 30 minutes, lotus seeds do not need to cook for too long, it is not easy to cook rotten and not formed.