Wild foraged 100% natural cleaned and air dried chaga. Please note that our chaga is sold by dry weight. Undried chaga will weigh 3 to 5 times the weight of properly dried chaga. Undried chaga is susceptible to contamination and mold and up to 80% of what you are paying for is water weight. Kiln dried chaga may not be as potent as air dried chaga if the temperature is not properly controlled.