What You Need to Know
The extraction relies on the solubility of kavalactones in cold aqueous media; mechanical grinding increases surface area, while prolonged maceration at 20–25 °C allows diffusion of these lipophilic compounds into the water. Heating above 50 °C degrades kavalactones and releases bitter sesquiterpenes, reducing potency.
The Science
Primary Reaction
Extraction of lipophilic kavalactones from ground kava root into cold water via maceration