In 2012, B. T. Enterprises invested in purchasing its very own and first of its kind in Africa a 7-layer Triple Bubble Extruder for casing and shrink bags using a number of different types of raw materials. This extruder has the ability to manufacture high barrier structures primarily as an oxygen barrier for improved food packaging shelf life due to the use of EVOH (Ethylene Vinyl Alcohol Copolymer) as one of the layers – this is the highest barrier to oxygen and other gases. Triple Bubble technology offers maximum orientation of the structures, giving the best properties possible, e.g. strength and post shrink. The machine has the ability to manufacture all standard calibres as well as large calibres of casings.