淘洗 is a compound verb meaning 'to rinse (grains) thoroughly' or 'to cleanse by repeated washing', especially to remove dust, husks, or impurities from rice, millet, or other uncooked grains. The character 淘 (táo) originally means 'to wash away sediment by agitating in water', evoking the motion of swirling and sifting; 洗 (xǐ) means 'to wash'. Together, they emphasize a careful, repeated rinsing process — not just a quick rinse, but one that involves stirring, draining, and repeating until the water runs clear.

This term is commonly used in cooking contexts, particularly in home kitchens across China, where rinsing rice before cooking is considered essential for texture and cleanliness. While it can occasionally extend metaphorically to 'purifying' or 'sifting out the undesirable' (e.g., in literary or historical analysis), its primary, everyday use remains practical and domestic — tied directly to food preparation and household routines.