The Matsés Indians use sieves to filter cooked beverages (e.g. piabo) before they are served.  The sieves are hand woven from the shoots of a bamboo-like plant found in the rainforest.  Piabo is a mixture of corn and plantains.  Cooking is generally a female task, but men generally help with harvesting and gathering food.  Surprisingly, Matsés women participate in hunting together with men.