21 Jul 2016 --- Doehler has strengthened its position in the botanical extracts space by acquiring Teawolf, an 8-year-old natural based extract company based in Pine Brook, New Jersey that specializes in coffee, tea, vanilla and botanical extracts. Teawolf is one of the leading extractors of the new plant based extract guayusa and hibiscus, with an annual turnover of about US$20 million.