The basis of kombucha is tea. A stainless steel tea egg or tea egg spoon makes it easy to draw tea into the hot water. The secret to perfect tea? Weigh your black, green or white tea leaves to 0.1 gram accuracy using a digital weighing spoon (up to 500 grams) or a digital scale (up to 120 kilograms). These products are not only handy for tea lovers and kombucha fans, but also for other brewers who like to measure and know.