Grinders at Alps Coffee

At Alps Coffee, disc and roller grinders are used for grinding, depending on the type of preparation. While disc grinders are used for espresso grinders and fully automatic machines, roller grinders are the premium class for filter coffee.

The grinding discs of the disc grinders are toothed and lie flat on top of each other. The degree of grinding can be adjusted by regulating the distance between the two discs. Flat grinding discs are primarily used for grinding espresso. The size and material of the grinding discs – from steel to carbide and ceramics – have an influence on the grind obtained and the service life of the grinders.

Roller grinders have a complex roller mechanism. Two grooved rollers rotate slowly and crush the coffee instead of grinding it. This process is particularly gentle and fairly quiet. The rollers usually have different geometries in terms of the size and arrangement of the grooves.

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Origin & Cultivation

The coffee plant, a botanical speciality

Coffee plants, which are actually categorised botanically as trees, are grown around the equator between 23° north and 25° south latitude. Cultivation and care are extremely complex, as Coffea is a very sensitive plant that does not tolerate extreme conditions. The coffee plant requires regular rainfall and temperatures of 17 to 23 °C. The trees and bushes in the plantations are initially planted 2 to 4 metres apart and only begin to bear fruit after 3 years. Their height is artificially kept at 2.5 to 3 metres to facilitate care and harvesting; they would otherwise grow to a height of 10 to 15 metres.

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