My main hobby is coffee roasting and brewing. There is nothing like freshly roasted beans. There are two main ways to roast coffee beans: hot air and drum. My methods for roasting may seem primitive to some, but it works for me.

Initially, I used a conventional oven and a ceramic plate to roast the beans. The main flaw in this process is that the beans do not get roasted consistently. Depending on ones oven, the beans on the…