I suppose you should ask Beacon for permish to quote from RR.

One way to increase stickiness is to use the culture machine to add a quality of unfinish to its production.

Technically, it’s known as a triarylmethane dye. In drugstores, it’s sold under the name Brilliant Green. But generations of Soviet citizens knew it as “zelyonka” (the green). […] After an application of zelyonka, a wound dries and forms a scab within a few hours.

I enjoyed many of the lagers during my week's stay and can personally attest to their highly sessionable nature.