Why Sandry put this scale in the kit
Sandry Law runs procurement out of Kunming, and for years the team graded sample lots on whatever scale the warehouse had — usually a 0.1g jewelry unit that lied to us at the low end. When we started running calibration sessions with tea.degree and the early cohorts at tea.school, the gap became unworkable: a tutor would call a 4.8g portion, a student would weigh 4.8g on their own scale at home, and the two cups would taste meaningfully different. The problem wasn’t the brewer. It was the instrument.
Sandry spent the better part of 2024 testing units from three Shenzhen OEMs, sending sample batches to Zhou Xiang in Hunan and Fang Ting in Henan for repeatability runs. The brief was narrow: 0.01g resolution that actually holds across a one-year calibration cycle, a silent timer, USB-C, and a tray wide enough for a small gaiwan but small enough to live in a travel pouch. Two of the three candidates drifted under steam exposure. The third — this one — held its zero through a full week of bench testing in our Kunming office.
The units are assembled in Dongguan, QC’d in Kunming before they ship. Each one leaves with a 50g calibration weight, a USB-C cable, and a card signed by Sandry with the batch number and test date. If yours drifts past tolerance inside a year, we replace it.