I have a question about step 1 on the recipe "South Indian Sundal (Chickpea salad)" from AshaFSK. It says:
"Soak the beans, in enough water and a little salt, overnight. Cook the beans in salted water in pan or in a pressure cooker (2-1/2 whistles) until just done. Drain and set aside. This can be made up to 2 days ahead. How can we tell when 2 1/2 whistles has arrived? Is there a time or a signal on an American (made in China) pressure cooker?