Tappning

Tappning is a Swedish noun that denotes the act of drawing off a liquid or other output from a source through a tap, valve, or outlet. The precise meaning depends on context and discipline, but the core idea is controlled extraction or access to a stream or feed.

In the beverage industry and horeca, tappning describes drawing beer, wine, or other drinks from a keg, cask, or bottle during serving or bottling. It also covers the process of filling containers for distribution, often governed by hygiene and quality controls.

In electrical engineering, tappning refers to tapping a transformer or autotransformer windings to obtain different voltages. A tap changer selects which winding tap is connected to the output, enabling voltage regulation or step-down/step-up operation.

In hydraulics and water management, tappning can denote drawing water from a well, reservoir, or pipe system for use or testing. It may also describe installing a tap into a pipeline for sampling or access.

In forestry or agriculture related to sap production, tappning is the act of drilling a hole in a tree and inserting a spout to collect sap, notably in maple syrup production.

See also: tap, tapping, bottling, tap changer, sap collection.