Kan Singles are highly concentrated extracts of individual Chinese and Western herbs. Each herb is processed in small batches that yield the most favorable percentage of herbal material per fluid ounce. Kan utilizes an innovative technology: a temperature-specific method of low heat. water-alcohol extraction. without hexane or ether solvents. in a closed system of all-glass construction. This produces fragrant. concentrated elixirs with no harsh residues. undesirable by-products. or loss of active compounds. The final product is the most aromatic. bioavailable herbal extract possible.