Who sets the standards for growing, brewing and roasting specialty coffee?
Ultimately the consumer sets the standards. If coffee isn’t good enough it won’t sell. There are associations who help set the standards broken up into different areas. For Europe where I am based there is the SCAE (Specialty Coffee Association of Europe) of which I am a member. There goal is to raise awareness of specialty coffee and improve education. There are many other associations like this for different areas of the world.