What Are Coconut Briquettes and Why Choose Them? Coconut briquettes are an eco-friendly alternative to traditional charcoal and wood-based briquettes. They are made of 100% coconut shells which are a natural byproduct of the coconut industry. Coconut shells are known to have a high calorific value, which makes them an excellent raw material for making briquettes. Unlike conventional charcoal briquettes that can contain harmful chemicals and additives, coconut briquettes are made from natural and sustainable sources, which are safe for cooking and the environment.