A tobacco grinder is a small cylinder, usually made out of aluminum, designed to shred tobacco into fine, even strips. Grinders usually consists of three parts, two halves of a grinder that each have sharp, interlocking teeth and a collection chamber below the grinder to catch the shredded tobacco. After being shredded, tobacco can then be used in hand-rolled cigarettes, which benefit from finely shredded tobacco, or in snuff.
Separate the two halves of the grinder. Place a pinch of tobacco in the 12, 4 and 8 o'clock positions. Press the tobacco down between the teeth of the grinder. The grinder will not close if tobacco is placed in the middle. Firmly press the lid of the grinder onto the bottom half, pressing the teeth on the top of the grinder into the tobacco.
Hold the grinder upright and twist the lid back and forth. Continue twisting the lid, until it turns smoothly. Twist the lid completely around in one direction and once again in the opposite direction to ensure that all the tobacco is shredded. Tap the bottom of the grinder against a hard surface, to ensure all the tobacco is in the collection chamber.
Remove the lid and the bottom half of the grinder from the collection chamber. The finely shredded tobacco is ready to be used. Some grinders have another chamber below the collection chamber. Separated from the collection chamber by a fine sieve. This second chamber is designed to collect fine particles of tobacco that can be used as snuff.