I have come across comfrey plants before and did not realize their potential harms and benefits! I think I will come back to this plant later on in the course. For now I think it is better for me to experiment with a “safer plant” / a plant that I feel more comfortable with. It is possible to purchase comfrey root for tea in the Netherlands. However, I found several sites that discourage this and state that it is safer to use the oil externally, especially if you have any other health conditions such as health issues related to the liver avoid ingesting it.
Urban Herbology Apprenticeship
Foraging, Growing and Using Herbs in Cities