The cleanest wood for smoke flavor bar none. Mojobricks burn real slow and make cooking with wood simple and fun. Mojobricks bar-b-qubes are the medium size of the three sizes. One bar-b-qube adds the perfect amount of smoke flavor. Burn times vary but typically you will have no reason to refresh the wood for 2 hr or longer. Competition blend, the #1 selling product. An all-natural blend of red oak and white oak. Competition blend is best used with pork, beef, poultry and wild game.