: Wait 15 to 30 minutes , then flush with a full kettle of boiling water.

Unblocking a kitchen sink without a plunger is entirely possible using common household items or basic DIY techniques. Most blockages are caused by grease or food buildup that can be dissolved or physically removed with the following methods. 1. The Natural Fizz: Baking Soda and Vinegar

: Cover the drain with a plug or cloth to force the reaction downward.

: Pour 1 cup of baking soda (bicarbonate of soda) directly down the drain.