They may be higher ash content than Somersets but my glass stays fairly clean. Somerset has much less ash but glass blackens up. I bought them inexpensive. I might buy them yet again for the correct price. CLEAN & ODORLESS BURNING: Practical experience the cleanliness and serenity of smokeless and https://gregoryvdlrx.angelinsblog.com/33728582/5-simple-statements-about-wood-pellets-for-bbq-explained