There is such a thing as good briar. When I cut and drill a pipe the block gives off a sweet smell. That being said I have not had a "bad" piece of briar. Most of my briar comes from Vermont Freehand. I think he has 2 suppliers. The wood is always clean and a very light in color. Some other wood I have picked up is much darker, I have not cut it so do not know if it gives off a sweet smell. How this relates to a brand.....I dont know that it does. I think there are too many variables at play, supplier changes, age and location of briar etc.