This is 1kg per batch model coffee roaster,it can roaste 1kg/batch(4-5kg/hour),it is a commercial use model machine,youo can use it in home,or a cafe,the machine is popular in the world,it can roaste various of flavour coffee beans ,so that to meet different ppeople's demand,the machine electric power can be 220V or 110V ,the color can be red,black ,silver and gold,our company is manufacturer of coffee roaster ,so we can provide best after-sale services to you