Mix 70gm rice
flour and 250ml water. Stir until thickened under medium heat. Mix 430gm rice flour, 30gm green bean
flour (lek tau) and 30gm tapioca flour. Sieve. Add 1 to 2 and use hands to mix well. Add 400ml water to the mixture. Stir
this thickened batter. Take a portion and place into the
desired pump. Press the batter into a wok of hot
boiling water. (Keep the fire on). When the vermicelli is cooked, take
it out and drain under cold water.