A gravity bong
is a method of consuming smokable substances such as cannabis
. The term describes both a bucket bong and a waterfall bong, since both use gravity and water to develop smoke. The bucket bong is made out of two containers, with the larger, open top container filled with water. The smaller has an attached bowl
and open bottom, and the smaller is placed into the larger. Once the bowl is lit, the operator must move the small container up, causing a pressure difference. Smoke slowly fills the small jar until the user removes the bowl and inhales the contents. A waterfall bong is made up of only one container. The container must have a bowl and a small hole near the base so the water can drain easily. As the water flows out of the container, air is forced through the bowl and causes the substance to burn and accumulate smoke in the bong. The bong is typically used for smoking cannabis and is generally not recommended for smoking tobacco
or other herbal substances. The bong is, however, often marketed for use of tobacco. Internationally, the sale of gravity bongs is often prohibited in countries where marijuana is illegal due to its association with the herb.
Coffeeshops are establishments in the Netherlands where the sale of cannabis for personal consumption by the public is tolerated by the local authorities (in Dutch called gedoogbeleid). Under the drug policy of the Netherlands, the sale of cannabis products in small quantities is allowed by 'licensed' coffee shops. The majority of these "coffeeshops" (in Dutch written as one word) also serve drinks and food. Coffeeshops are not allowed to serve alcohol or other drugs, and risk closure if they are found to be selling soft drugs to minors, hard drugs or selling alcohol. The idea of coffeeshops was introduced in the 1970s for the explicit purpose of keeping hard and soft drugs separated.