On the touch panel of the Smart Brewer, it has 9 tea types with preset temperature and time. The "Custom" type allows you to add specific temperature and time for a tea type of your choice. You can set it up using the Qi Aerista app. You can also customize the other 8 tea types through the Qi Aerista app. Temperature can be customized anywhere
from 2 to 15 minutes. For example, if you change the ‘white’ setting to 4.5 minutes, then 4.5 minutes will be your new default setting. If you would like to
restore to your default setting, you can always do so.Here's the preset brewing parameters: