What is a common use for tetra extract in brewing?

Tetra extract, commonly known in the brewing industry, serves a crucial purpose beyond just flavor enhancement. Its primary function is for foam and light stabilization. This is particularly important for beers that are intended to have a long shelf life and maintain their quality when exposed to light, which can lead to the formation of off-flavors.

While other uses such as increasing sweetness or bitterness may appeal to brewers, tetra extract specifically contributes to improving the stability of the beer's foam and protecting it from degradation caused by light exposure. This stabilization helps ensure a well-presented beer, especially in terms of head retention and appearance, which are key attributes in the overall enjoyment of the beer.

In summary, tetra extract's role in foam and light stabilization is instrumental in producing a high-quality beer with desirable sensory attributes, thus making it a valuable addition in the brewing process.