Here are some criteria of what people wants from coal when they are smoking shisha, which are the most important for you?
For me it's: 3 - 1 - 2 - if i got something more from 4 to 8 then it will be a bonus.
What about you, guys? is that anything else beside of those 8 criteria?
3. no taste
4. strength. It has to be very strong that when you smash it to the floor it wont be crack.
5. minimum ash during the burning and after.
6. white ash instead of a bit brown or grey
7. good packaging design
8. nice cube shape