SPEED UP BREWING: shorten the depth of coffee bed, which allows you to speed up the brewing with a same grind setting, and also allows you to grind the coffee finer without brewing way too long.
EVEN BREWING: Thinner coffee bed can also benefit the evenness of your brew. Upper layer and lower layer of coffee bed are closer to each other, the different of extraction levels are smaller. As it allows you to grind coffee finer, distance between particle surface and core will be shortened too(same issue as the upper lower layer).
HOLDING BREWING TEMPERATURE: adding a mass of ceramic into your brewer can help holding your temperature at the beginning of your brew, and maintaining your temperature at the end, newest brewing temperature concept based on scientific experiments.
CHANGE COFFEE FAVOR: brew coffee with Lilydrip , it make your coffee rich favor and make brewing more fun.