How to Unclog a Drain with Baking Soda (3 Methods) Important Safety Note: Do not use these methods if you have already poured a commercial chemical drain cleaner (like Drano or Liquid-Plumr) down the drain. Mixing chemicals can cause dangerous fumes, heat, or explosions. Also, avoid this method for totally blocked drains (water won’t drain at all). Method 1: Baking Soda + Vinegar (Most Common) Best for: Slow drains, grease buildup, and mild organic clogs. What you need:

1/2 cup baking soda 1/2 cup white distilled vinegar Kettle of boiling water Drain plug or wet cloth

Steps:

Remove standing water – Scoop or pour out any water in the sink/tub so the drain is clear. Pour baking soda – Dump 1/2 cup directly into the drain. Add vinegar – Immediately pour 1/2 cup vinegar after. It will fizz and bubble vigorously. Cover the drain – Use a plug or a wet cloth to seal the opening. This forces the reaction down into the clog. Wait 5–10 minutes – Let the chemical reaction work on the clog. Flush with boiling water – Pour a full kettle of boiling water down the drain. Test – Run hot tap water for 30 seconds. Repeat if flow is still slow.

Method 2: Baking Soda + Salt (For Grease & Soap Scum) Best for: Kitchen drains and bathroom sinks with soap/grease buildup. What you need:

1/2 cup baking soda 1/2 cup table salt Kettle of boiling water

Steps:

Mix baking soda and salt in a bowl. Pour the mixture down the drain. Let sit for 20–30 minutes (no need to cover). Flush with boiling water. Run hot tap water to clear residue.

Method 3: Baking Soda + Hot Water (Maintenance Only) Best for: Weekly prevention, not for existing clogs. What you need:

1/4 cup baking soda 1 gallon hot tap water (not boiling)

Steps:

Pour baking soda down the drain. Immediately run very hot tap water for 1 minute. Repeat weekly to prevent odors and slow buildup.