Rice straws are made from the natural ingredients of rice flour and tapioca starch. The colouring is from natural root vegetables. Taste free - Rice straws do not change the taste of your drink! Durable - Rice straws are suitable for a variety of drinks including smoothies, frappes and bubble tea. Edible - They soften in your drink and can be enjoyed as a snack afterwards! End of life: 90 days garden compostable Longevity in liquids: 2 - 3 hours Shelf life: 18 months