Bean compartment capacity
The maximum number of coffee beans that the grinder can hold and process at one time, without "refilling". Note that we are talking about the maximum capacity — a smaller amount of coffee can be loaded into the grinder.
The standard portion of coffee per cup is 5-7 g, and the capacity of a pack of coffee is 100 g. Accordingly, it is worth choosing a model according to capacity, taking into account how much coffee you need to grind at a time. For domestic use, a capacity of 100-200 g is considered quite sufficient, but in professional models designed for coffee shops, bars, etc., this value can reach 1.5 kg or even more. There are coffee grinders that allow you to grind only part of the coffee loaded into them.
Adjusting the grind
The ability
to adjust the degree of grinding of processed coffee beans (that is, to set how large beans of the resulting coffee are obtained). A number of characteristics of coffee depend on the degree of grinding — in particular, the brewing time (the finer the grinding, the faster the brewing), taste characteristics (the presence or absence of grounds). In addition, different preparation methods and types of coffee machines require correspondingly different grinds.
In models with a knife (see "Grinding system"), the degree of grinding is adjusted by automatic shutdown after a set time — the longer the device operates, the finer the grinding. With a certain skill, you can also adjust the degree of grinding manually, independently monitoring the time.
In models with millstones, the degree of grinding is adjusted by changing the distance between the millstones, which ensures the best quality and independence of the operating time from the selected settings.
Number of grinding levels
The number of grinding levels provided in the coffee grinder.
For different cases may require different degrees of grind, see “Adjusting the grind” for more on this. The same parameter determines how many fixed settings are provided in the coffee grinder. The more of them, the wider the capabilities of this device, the more accurately you can choose the option for a particular situation.
Note that this characteristic is given only for models with millstones (see "Grinding system") — it is not relevant for knife devices. In the most advanced models, the number of grinding degrees can be in the dozens.
