Poi is a traditional staple food in the Polynesian diet, made from taro. Traditional poi is produced by mashing cooked starch on a wooden pounding board, with a carved pestle made from basalt, calcite, coral or wood. Modern methods use an industrial food processor to produce large quantities for retail distribution. Water is added to the starch during mashing, and again just before eating, to achieve the desired consistency, which can range from highly viscous to liquid. In Hawaii, this is classified as either "one-finger", "two-finger", or "three-finger", alluding to how many fingers are required to scoop it up (the thicker the poi, the fewer fingers required to scoop a sufficient mouthful).