How much herb is used per extraction ?

The Merlin400 can load a volume of 175ml herbs.
This typically equals 35 – 40 grams of industrial hemp, or 30-35 grams of high-potency cannabis.
If your herbs contain a lot of seeds the weight will be higher, but the yield will be lower, due to the lower relative amount of herbs.

Seeds do not contain cannabinoids, and the hemp-seed oil will not get extracted in Merlin400.
Stalks does not contain any wanted compounds either, and should be removed from the herbs prior to extraction. This can easily be done after blending the herbs for extraction.