oil strainer
A kitchen utensil for straining oil, often used when filtering used cooking oil for reuse.
After deep-frying, I strain the oil with an oil strainer.
Standard spelling using こし (kana) for the second part.
Rarely used kanji form; 漉し is a less common kanji for straining.
Compound of 油 (あぶら, 'oil') and こし (連用形 of こす, 'to strain').