Caffeine is one of many naturally occurring chemicals in tea plants that plays two important roles: protecting the plant from predators while making its flowers appealing to pollinators such as bees. It is known to be soluble in both pure water and pure dichloromethane, but exhibits a preference towards one solvent over the other. Describe the procedural steps to perform a liquid-liquid extraction and isolation of solid caffeine from a sample of one commercial tea bag.