Wood for food: a primer on pyrolysis
by Guillemette Barthouil Overview Smoking is valued nowadays not only for preserving food, but also as a distinct set of flavours that can reflect the landscape of the region. Pyrolysis, the thermochemical decomposition of organic matter, breaks apart the three main components of wood: cellulose, hemicellulose and lignin. Each influences the colour, flavour, preservation and surface texture of the food – this information is summarized in Figure 4 below. Controlling pyrolysis is the key know-how involved in good smoking. Overall, for best results the wood moisture should be lower then 25% and its combustion temperature around 400°C. “Smoking is one of the oldest food preservation methods, probably having arisen shortly after the development of cooking with fire.” (Encyclopedia Brittanica) Most articles I have read for this research have started with the same statement. Humanity has used this technique for so long, it seems rather strange to try to explain it … Read more