Lump charcoals vary in quality just like many other products. It is important to look out for the following key factors when shopping around. • Appearance: The lumps should be uniform in size and shape, have a low moisture content, and should not contain any foreign objects (e.g., rocks). • Price: Lump charcoal prices are typically higher than other types of charcoals because it takes more time for manufacturers to break down larger chunks into smaller pieces that can then be used for cooking food over an open flame or hot coals. • Quality Control Measures: Manufacturers will sometimes use additives like sawdust, resins/binders, fillers (such as clay), gluten meal, animal by-products (e.g., blood meal), coal dust, etc…