Hawthorn berries were once used as a substitute for flour when baking bread. Ignorantly, I dried them and ground them into flour with a coffee grinder. That worked. I substituted only 3 heaping tablespoons of the resulting flour at a time from 400 grams of whole wheat flour, though.
Later I read (where, I unfortunately do not remember) that the hawthorn berries are cooked and then passed through a sieve. The resulting pulp is dried and then finely ground in a blender. (I have not yet tried to do this myself). However, I find this preparation quite energy-intensive, especially because it is more difficult to dry in the air in autumn.
Notes from friends and more
Note from Telegram – Channel: Aussie Preppers – User: Surfer65
Hawthorn berry dropped my blood pressure to normal within a day or less, dried organic berries steeped by themselves. Once blood pressure normalised I mixed green tea, hawthorn berries, star anise and honey for a tincture. I’d make a tincture in the morning for a room temperature drink before bed and a tincture at night to have on an empty stomach on the morning.