The most common complaint from a new user is that it does not cook evenly. The degree of evenness is primarily a result of these factors:
- The fineness of the grind.
- The degree of load mixing, via stirring, tumbling, or shaking.
- The volume of the load.
- the average length of time in any given heating cycle (or draw).
The importance of grinding finely cannot be overstressed. To achieve optimal evenness: grind fine, load less, heat longer (but don't wait for the battery!), and mix/shake often and thoroughly. Under these conditions the Box can deliver very even and complete extractions. Almost every user who reports uneven heating learns to correct the problem with proper grinding and technique.