Whether drum roasters, tangential roasters or centrifugal roasters, today most coffee roasting machines are operated with gas, with a few exceptions. However, in connection with climate protection, sustainability and legal requirements, alternative heating methods are increasingly attracting interest. However, no electrical heating system has been found so far that permits a roasting process that is close to that done with gas. Why is that? Compared to gas-powered roasters, the earlier electrically heated roasters are considered to be powerless. Not true anymore!

With up to 40 kW, the LHS 91 SYSTEM is a high-performance air heater from Leister and a true hot air power package. It is used where large air volumes and high temperatures are required in continuous operation

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