Rice Powder Straws are the product from rice flour source of Vietnam. Being made from cooked rice flour, tapioca starch and water, so it is just a safe tool to drink a good for 30 minutes to 1 hour. Edible rice-flour straws can be held their strength and shape in cold drinks and will decompose virtually overnight after being discarded. It is said that our straws are an awesome and secure option for the environment, you and the beloved people around you.