Step 1: The Art of Charcoal Making
For thousands of years men have manufactured charcoal from all manner of trees, but experience taught them that the harder the wood the better the grade of charcoal. In the picture below, taken on the Isle of Crete, you can see one traditional method of charcoal making. Several piles of wood prepared for the next bonfire, a half-excavated charcoal pyre, and sacks filled with charcoal ready for sale, describe the age-old art of charcoal making. Great piles of wood are carefully arranged so that once the fire is set the heat that is generated slowly "bakes" the wood, boiling off the moisture, leaving behind the hard black crusted charcoal.
Today, charcoal is commonly produced from any number of materials including sawdust, bamboo, coconut shells, olive pits, pecan shells, besides hardwoods. In fact any organic material can be used to start with.