I've only began drinking chaga mushroom tea within the last month and I already see n feel the healing effects within my body. I place 4-5 chunks in a 1 liter of water, bring it to a boil then turn it to low n let it simmer for 3 hours. This makes 2 cups of rich dark tea which I bottled n place in the fridge, then warm it up adding a teaspoon of maple syrop for a delicious tasting morning brew. Try it, you'll like it. You can brew different size batches but this works for me. Enjoy