Follow label – usually pour in, let sit 6-8 hours (overnight), flush with water.
Home remedies work in 80%+ of simple kitchen sink clogs. The key is patience – don’t rush the soaking or reaction times. If you’ve tried 3 methods and still see standing water after 10 minutes, call a plumber.
Cup plunger (flat bottom – for sinks, not the flange type for toilets), wet rag.