The effectiveness of this method is due to three combined mechanisms:

When baking soda (NaHCO₃) is mixed with hot water, it decomposes into sodium carbonate (Na₂CO₃), carbon dioxide (CO₂), and water. The vigorous release of CO₂ bubbles creates a scrubbing and lifting action within the drain. This turbulence physically dislodges soft organic matter and soap scum from pipe walls without damaging surfaces.

Here's a step-by-step guide:

This natural drain cleaning method offers several benefits, including: