Some of the active healing goodies in mushrooms are soluble in water, but some are soluble in alcohol. MushroomMama’s tinctures are made by first placing medicinal mushrooms in alcohol for six weeks. The mushrooms are then strained and extracted in hot water. Both the alcohol and water extracts are blended together and voila, double-extracted tinctures. Mushroom guru, Paul Stamets explains that mushroom tinctures containing both the water and alcohol extractions give two layers of protection to the immune system. In addition, alcohol is a natural preservative.