Here you can buy grinders with two, three or four parts in aluminium, metal or silicone-coated, mostly 50 mm, plus a stainless steel grinder card for your pocket. Colours from black to pink, plus the Rick & Morty series with printed lid.
Two, three or four parts
A two-part grinder is lid and grinding chamber: flat, cheap and enough if you use the flowers right away. The three-part has a screen below the chamber and a catch chamber: ground flowers fall through, stay fluffy and come out clean. The four-part adds a fine mesh below the screen that collects resin crystals (kief). After a few weeks you have enough kief for a joint.
Aluminium, metal or silicone
Aluminium grinders are light, have sharp teeth and last years with daily use. The 45 mm metal grinder is more compact and heavier, with a slightly finer grind. Silicone-coated grinders are grippy and do not rattle in your pocket. Acrylic is the budget entry, but the teeth dull faster.
45 or 50 mm
50 mm is the standard and grinds a portion for two to three joints in one go. 45 mm fits a trouser pocket and is enough for one person. Larger than 50 mm only pays off if you regularly grind for several people.
Care
Resin builds up on teeth and thread. A soft brush after each use and an isopropanol bath every few weeks keep the grinder smooth. Silicone and aluminium handle it, acrylic does not.
Matching papers and filters under Rolling papers and blunts and Activated charcoal filters. Airtight jars for ground flowers under Storage.
