Pu'er is a dark fermented tea with a robust earthy taste. It is regarded by many connoisseurs as the most distinguished of tea varieties and is one of very few that actually gains value as it ages. This tea is known to be both medicinal and delicious, with a high caffeine content and its soothing effects on the stomach. Typically served hot. An added ounce or so of hot coconut milk or almond milk refines the taste nicely.