How to choose high quality manual coffee grinder? Generally, when purchasing manual coffee grinder, it is impossible to check according to the standard, but it can be filled with hot coffee and then hand-feeling. The manual coffee grinder is not insulated. After the hot coffee is filled for two minutes, the lower part of the cup will heat up, while the thermal insulation is manual. The lower part of the coffee grinder is always cool.
The first thing to look at is the appearance of the manual coffee grinder. See if the surface of the liner and the outer bladder are uniformly polished, and whether there are bruises or scratches;
Second, see if the manual coffee grinder mouth welding is smooth and consistent, which is related to the feeling of comfort when drinking coffee;
Third, look at the quality of manual coffee grinder plastic parts. Not only will it affect the service life, but also affect the hygiene of drinking coffee;
Fourth, see if the internal coffee grinder internal seal is tight. Whether the screw plug and the cup fit properly. Is it free to screw in and out, whether it is leaking coffee. Fill your cup of coffee for four or five minutes or use a few squats to verify that you are missing coffee. Look at the insulation performance, which is the main technical indicator of manual coffee grinder.
