There is no need to blanch again after soaking the roti.

Soak dry bamboo, do not use boiling water, this is indeed easy to soak bamboo rotten, and the flavor is not very good. Generally according to the length of time to choose to soak the temperature of the water, if not in a hurry, it is best to use cool water soak, soak three or four hours or so can be, in the use of cool water soak, it is best to use a plate or something else on the pressure, so that all of the bamboo can soak into the water.

If the time is relatively short, you can use warm water to soak, the water temperature should not be high, soak for an hour or two can be, with warm water soaked bamboo, in the modulation, it is best to go through the cool water.