Leafkettle is a quiet, practical notebook for brewing and appreciating tea. Designed as an offline resource with nothing to sign up for, it brings together reference tables, a temperature-aware timer, tasting vocabulary and short brewing guides. Its steeping tables offer starting points for white, green, oolong, black and pu-erh teas, as well as herbal infusions, with guidance on leaf quantity, water temperature, steeping time and repeat infusions. Separate figures cover Western brewing and gongfu preparation, helping readers adjust their method to the vessel and tea.

The timer tool lets users choose a tea type and brewing method, then provides suggested temperature, leaf ratio and steep duration, including longer times for subsequent infusions. A tasting glossary explains terms for texture, aroma, flavour and finish, supporting consistent notes from cup to cup. Leafkettle’s guides cover estimating water temperature, comparing Western and gongfu ratios, and troubleshooting a disappointing brew. The resource also explains how water quality and brewing choices affect flavour, offering approachable reference material for both curious beginners and regular tea drinkers.