All our flavored BBQ pellets are formulated to provide a mixture of 40% of the flavor wood (Hickory, Pecan, Apple, Mesquite, etc.) and 60% Red Oak base. There 3 reasons for this.
Many species of trees produce too strong a taste for many of our customers (for example, Mesquite).
All wood burns at various heat output levels. Rather than have to adjust the grill for each species the user wants a consistent heat output pellet.
Some woods are very expensive (for example, Mesquite and Pecan). If used in a 100% pellet, the price can be approximately double, putting it out of the range of many customers. We do still make the pricier 100% species BBQ pellets for those that want to blend their own formulas.