If You Care 100% Biomass Firelighters are crafted from FSC-certified wood and 100% non-GMO vegetable oil. These eco-friendly fire starting cubes offer a sustainable alternative to those containing kerosene and petroleum. Ideal for fireplaces, grills, wood-burning stoves, and campfires, simply use 3 – 4 cubes per fire. Each cube burns for 8 – 10 minutes, providing reliable ignition without harmful additives.