Carb

On pipes, bubblers, and bongs, a carb refers to a small secondary hole or opening (short for carburetor) that allows the consumer to finely control airflow and temperature during inhalation. Covering and uncovering the carb hole with a finger or peg allows precision manipulation of airflow.

This level of manual carb control empowers smokers to expertly corner bowls to avoid torching greens, sustain an ember without needing to constantly re-light, and effectively clear chambers of smoke after hits. While not essential, carburetion allows active airflow customization during smoking for a superior experience.

Carb holes provide expert cannabis enthusiasts yet another avenue for custom tailoring airflow, heat, ember maintenance, and hit volume according to personal preference, conservation goals, and optimization of enjoyment.