Dill, although damaged by hail early in the season, also showed good potential in yield and quality. A number of parties contributed greatly to the development of the essential oil industry in Alberta. The presence of the market as represented by the interest of the French company Robertet, the extension and research efforts by crop specialists from Alberta Agriculture, the financial support from Farming for the Future and Alberta Agriculture for research and developmental activities and the growers who took the risk and overcame problems encountered in field production, helped develop the essential oil industry in Alberta. Most of the research efforts conducted by the Alberta Special Crops and Horticultural Research Center at Brooks, focused on the adaptation of a wide variety of crops, the agronomics and management of a number of potential crops, varietal development, and on the procedures in extracting oil from the different plants and their parts. To generate high pressure dry steam used in vaporizing and extracting the oil.
Cost depends upon size of the boiler.
Tubs These are the mobile tubs that are brought to the field, filled up with chopped plant material and then brought back to the distillation building. It contains headers and steam lines at its floor where steam is passed and dispersed throughout the tub. Condenser Condenses the steam and the oil vapours coming out of the tub. The vertical condenser is now commonly used. Receiver Receives the condensate or liquefied water vapour and oil coming out from the condenser.