1, fresh plantain should be boiled for 10-15 minutes.

2, fresh psyllium, the tissue cells of its leaves are relatively tender, can be pulled out with the root to boil water to drink, the active ingredients of which are easy to be boiled out, generally boiled for 10-15 minutes can be, if it is sun-dried psyllium, the cooking time will be a little longer, you need to clean the psyllium first, and then soak it for 5 minutes, and then boil it for 20 minutes or so to drink.