Red Angel is patiently and painstakingly aged in puncheons with 1.5 pounds per gallon of fresh, whole raspberries. After maturation in these neutral oak vessels, this sour is re-fermented on an additional 2.5 pounds per gallon of raspberries to impart fresh berry character. A total of 4 pounds per gallon (2.5 metric tons) of fruit renders Red Angel the complete essence of raspberry in a glass.