Optional: run your chosen dried herbs through the coffee grinder until they are coarse chunks (not powder). I am using dried valerian. Grinding them a bit exposes more of the herb's surface area.
Weigh 30 grams of your desired herbs (or the amount you wish to use).
Now for a little math: multiply the weight number (in grams) by 5. The answer to this is the number of milliliters (mL) of 100 proof alcohol to measure out. I am using 30 grams of dried valerian. So, 30 x 5 is 150. I will measure 150 mL of alcohol to use. In the jar, add the 150 mL of 100-proof alcohol to the dried herbs. So, I am adding 150 mL of alcohol to my 30 gr of dried valerian.
Put the lid on the jar and label. Shake well.
Put the jar in a dark, cool place and shake it daily for 3-4 weeks.
After 3- 4 weeks, strain the tincture through a sieve into a clean bowl, jar, or container.
Squeeze out all the liquid you can.
Now we are going to strain the tincture one more time through an unbleached coffee filter to catch any sediment. Line a clean sieve or coffee pour-over and set it on another clean container.
Pour the tincture into the filter and let it strain. This takes a bit longer. You may need to change filters or use a spoon to move sediment from the bottom to allow tincture to flow through.
Now the tincture is ready to bottle. The tincture I was left with weighed 2.7 fl oz. Yours may vary a bit.
Put a funnel in the opening of the 4 oz-sized amber dropper bottle.
Pour the tincture into the bottle.
Put the lid on the bottle and label it with the name, date made, dosage, and other pertinent information.
Store in a cool, dark, and dry location.
Properly made, this tincture should last a couple of years and possibly longer.
The adult dosage for most tinctures is typically 30-60 drops (diluted) 3-5x a day. However, I would stress having a reference book to look up dosages for specific herbs.