The material of the grinding wheel is important when you start grinding coffee beans, you have them made of metal and ceramic. Metal is cheaper, but they heat up faster due to friction and are slightly more susceptible to wear and tear. Ceramic is mostly used in the hospitality industry, this is because you only taste the difference when you use it a lot. The difference is that the aroma does not come out of the beans properly and it starts to taste bitter as a result. This difference is because there is too much heat when grinding For home use, metal is recommended. With the grinding discs, it also matters how big they are, the bigger the grinding discs the faster and more consistently the coffee beans are ground. They can be divided into three main sizes:
- 40 mm, fine for home use
- 64 mm, for coffee lovers with a larger budget
- 83 mm, for business use