I don't know the specific situation of electric boilers. Jianshui Zitao boiler stews young chickens for more than 2 hours (without water), and chickens for more than one year for 4-5 hours. Steamed rice doesn't need water! If it is raw rice, it may be 45 minutes; Boil the filtered rice soup and ventilate for 10 minute. By the way, the most famous Jianshui boiler is, alas! Can't we talk about it here? Looking for at night: famous brand steam boiler

Bismarck, congratulations on your good luck