Gather your supplies.
Optional: Use a coffee grinder to grind your dried willow bark. This breaks it down further, exposing more of the herb to the alcohol. It's okay if you don't.
Set your scale to the grams mode and weigh out 30 grams of willow bark.
Add the willow bark to a small jar. A half-pint-sized jar should be good here.
Take the weight of your willow bark (in grams) and multiply it by 5: 30 x 5= 150. This number is the volume of alcohol you will use in ml. You need 150 ml of alcohol.
Now set your scale to ml mode or use a graduated cylinder to measure out 150 ml of your 100-proof vodka (or 50% alcohol).
Now add the vodka to the jar with the willow bark and seal with a lid.
Put on a lid and shake a few times. Label (see notes for how to label).
Let the jar sit for 4-6 weeks, shaking daily.
Now to harvest the tincture! Line a mesh strainer with cheesecloth and place it over a bowl or container.
Pour the contents of the jar into the lined strainer and allow the tincture to fully drain into the container.
When the liquid is drained, gather up the corners of the cheesecloth and squeeze out any remaining liquid. Your tincture will be the color of rust.
Use a container with a pour spout to pour tincture into an amber bottle. Label your tincture. *Free tincture label template here. It is ready for use!