Discover the Pot & Pan Lids collection at Globalkitchen Japan. An otoshibuta, also known as a drop lid, is a traditional Japanese cooking tool used in simmering, stewing, and braising dishes. The otoshibuta is designed to rest directly on top of ingredients in a pot or pan, helping to regulate cooking by distributing heat evenly and preventing rapid boiling. The lid for a Hangiri, also known as a Sushi Oke or Sushi Tub, is a crucial component of this traditional Japanese wooden bowl used in sushi rice preparation.