Made with no additives, lava rock provides an efficient and equal heat to ensure that your food is cooked perfectly. We take careful measures to ensure that all quarrying of the lava rock does not damage the local environment or nearby wildlife. Once the rock has been recovered, we carefully crush it to create equal pieces for you to easily pop under your BBQ. Supergrill Lava Rock is famous for its long lasting qualities, and itll keep creating an excellent heat output for an incredible amount of time. With each of the rocks at least 1,000 years old, Supagrill Lava Rock is the most authentic way to BBQ.