What is a bong?

What is a bong?

A bong (also called a water pipe) is a smoking device in which the smoke passes through water before it is inhaled. The water cools and filters the smoke. Bongs have been used for centuries in various cultures around the world, for example for tobacco, herbs and other smoking blends.

Note: This guide explains the design and function of bongs as a piece of equipment. Buying a bong as a device is permitted in Germany. The device must not be used to consume prohibited substances.

Parts of a bong

Most bongs consist of the same basic components:

• Tube: The main pipe through which the smoke travels upward
• Chamber: The area that holds the water and where the smoke collects
• Downstem: The pipe that leads from the bowl into the water; the smoke passes through the water
• Bowl: This is where the smoking material is placed
• Carbhole (optional): A small hole that lets in fresh air when released and clears the chamber

How does a bong work?

The basic principle is simple: negative pressure in the chamber draws smoke from the bowl through the downstem into the water. There it bubbles up, is cooled and filtered, then rises in the chamber and leaves the device through the tube.

Bong materials compared

• Glass: The most common material, neutral in taste, easy to clean, fragile
• Acrylic: Inexpensive, robust, an easy start
• Ceramic: Heavier, retains heat well, harder to clean
• Silicone: Unbreakable, flexible, more affordable
• Bamboo: Traditional, natural, sustainable

How to clean a bong

Regular cleaning is important for hygiene and taste:

• Change the water after every use
• Clean glass parts with isopropyl alcohol (at least 91 %) and coarse salt as an abrasive. Shake, then rinse thoroughly
• Clean the downstem and bowl separately
• Replace bowl screens regularly

Frequently asked questions

Is a bong permitted in Germany?

Yes, buying and owning a bong as a device is permitted in Germany. What matters for the legal assessment is which substance it is used with.

What is the difference between a bong and a shisha?

With a shisha, the tobacco is heated by glowing charcoal, and the smoke is filtered through water and inhaled through a hose. A bong is more compact, has no heating system and is lit directly. Both use water for cooling.

What is the difference between a bong and a pipe?

A pipe has no water. The smoke travels directly through the pipe, without being filtered or cooled by water.