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corner sink strainer, kitchen corner basket
A small triangular basket or container placed in the corner of a kitchen sink to collect food scraps and garbage while washing dishes. A standard item in Japanese kitchens.
Named for its triangular shape, which fits into the corner of a sink. Found in most Japanese kitchens. Usually used with a disposable net (水切りネット) to make cleanup easier.
Recently, some households are adopting a 三角コーナーなし lifestyle, opting to dispose of food scraps directly into garbage bags to save sink space and reduce odor.