Barbecue BBQ Charcoal Restaurant Grade. Premium quality, restaurant grade lumpwood charcoal perfect for BBQs. 12kg bag. This excellent charcoal is produced in large lumpwood chunks which burns hotter and longer than ordinary charcoal. The slow burning lumps are more efficient and economical than regular charcoal. You need about 1.5 bags of charcoal for each of our long BBQs.