Add the dried and chopped Resishis into a clean glass jar. Fill the jar ⅓ of the way full.
Cover the mushrooms with alcohol. I usually use unflavoured vodka but you can use what you have on hand, as long as it’s 80-proof or over. The stronger the alcohol, the better the beneficial compounds will be extracted from your plant material, so you can consider using a strong alcohol like Everclear.
Add a lid to the jar and shake it vigorously so that everything is covered with alcohol.
Date and label the jar and set it in a cool, dark place for 6-8 weeks. After a day, top up the alcohol to make sure everything remains completely covered.
Aim to shake the jar every day or so to keep everything moving and covered.
After 8 weeks, use cheesecloth or a strainer to filter off the tincture. You can use a strainer to strain off the larger pieces, and then cheesecloth to strain off any smaller pieces.
Set the alcohol extraction aside in the fridge and add the same mushrooms into a small saucepan.
Add double the amount of water you want to end up with into the saucepan. For example, if you want to make 1 cup of tincture, use 2 cups of water. This is because half of your final tincture will come from the alcohol extraction, and the other half will come from the hot water extraction. So, if your glass jar is the size you want your final tincture to be, use enough water to fill the jar during the boiling process.
Warm the water to just before it simmers. Allow it to remain at this low heat for at least 4 hours until about half of the liquid has evaporated. You want to avoid a rolling boil because it can kill off some of the beneficial compounds.
After half of the liquid has evaporated, turn off the heat and allow the mushrooms and liquid to come to room temperature.
Use cheesecloth or a coffee filter to strain off the water. Do your best to completely strain off the plant material. Compost the mushrooms.
Use a whisk to combine the room-temperature water extraction with the alcohol extraction.
Add the final tincture to a glass jar or amber glass dropper bottle (you can store the excess tincture in a glass jar and top up the dropper bottle when you need to). Make sure to label and date it so you know what it is. Store it in a cool place away from direct sunlight (like a pantry or cupboard).