Yes, I have tried chaga in its raw form a few times. I usually make a drink similar to chaga tea, but without heating. I just cut small pieces of chaga and soak them in cold water overnight. Then I just drink this water in the morning on an empty stomach. It gives me a boost of energy for the whole day! I've also tried as an additive to salads. I just slice the chaga into thin slices and add it to a salad plate. Its texture is a little tough, but the combination of flavors is very interesting. Plus, it's a great way to get all the health benefits of chaga.