Tonka bean oil Tonka bean oil Tonka bean oil is extracted from the seed of "Dipteryx odorata". The oil is composed primarily of coumarin, which is used to flavor tobacco. It is neither a pressed oil, nor an essential oil, but was traditionally obtained by soaking the large, single tonka bean seed in rum or other alcohol for 24 hours, after which crystals of coumarin appear on the outside of the seed, and are then collected. The seeds contain up to 46% oil by dry weight. In recent years, most commercially produced coumarin are synthetic, which has reduced the demand for tonka beans
Hubert Tonka author Jeanne-Marie Sens founded the publishing house Sens & Tonka. Tonka and Sens co-authored and published several books on architecture. Tonka gave life to the Pneumatic concepts of the "Utopie" group, which advocated ephemeral, inflatable structures. Tonka held extreme left opinions, close to the anarchists, that could be traced back to Rosa Luxemburg and Mikhail Bakunin. Talking of the intellectual roots of the "Utopie" group, Tonka said: In a 1971 interview Tonka said "To imagine ... that it is possible to act politically through urbanism, architecture, and the detournement of either is a dream." He believed that only a revolution