Coffee makers with ceramic millstones

Ceramic millstones

— the presence of a coffee grinder in the device (see the relevant paragraph) with ceramic millstones.

For many coffee connoisseurs, this option is more preferable than the more common metal millstones. In particular, there is an opinion that due to heating during operation, the metal can affect the taste of grains, while ceramics are free from this drawback. However in fact this is due not so much to the properties of these materials, but to the overall quality of the coffee machines themselves — they are generally more expensive than models with metal millstones, and use more advanced materials and design solutions. However, even a purely psychological moment (“coffee is ground with high-quality ceramic millstones”) can significantly affect the attitude towards the product and the final impression of the finished drink. In addition, ceramics can significantly reduce the noise level during the operation of the coffee grinder.

The main disadvantage of this option is the sensitivity to hard foreign objects. Even small impurities, such as a few grains of sand or a paper clip accidentally caught in the mechanism, can lead to chips and cracks on the millstones and disable them. In addition, if many "metal" coffee grinders can be used for other food products, including rather hard ones, then "ceramic" ones are intended exclusively for coffee.