I originally bought from Walmart 2 4th July ago they had special bags for the forth and cheap like $9 a bag before they came out with this..
Yes they are marked "burns hotter" which means you use less. To get same effect... Thinks wood burning stove vs coal burning stove same principle.
I now will mix these in with regular wood about 50/50. Or if bigger bags wood half charcoal then rest of bag of wood.
I use the food grade 5 gallon buckets from Walmart so 2 to store and one to switch out what might be in the smoker.