Brew the tea: Heat 250 g of distilled water to 176°F (80°C) in a 4-quart saucier. Add the Mao Feng tea and steep at no higher than 176°F, following the tea’s package instructions regarding steep time.
Sweeten and acidify: Once steeped, stir in the sugar and citric acid solution. Heat gently and agitate until fully dissolved.
Adjust water content: Strain the mixture over a gram scale. Add distilled water to restore any evaporated weight, ensuring the total equals the original combined weight of water, tea, sugar, and acid—excluding tea leaves.
Initiate curdling: Cool slightly, then pour the tea mixture into the whole milk. Stir gently 3–4 times and let rest undisturbed as curds form.
First filtration: Strain the curdled milk through a fine mesh filtered sieve. Set the collected curds aside.
Second filtration (clarity boost): Place the sieve with curds over a new vessel. Slowly pour the initially filtered milk over the curds for a second clarification pass.
Finish and store: Once fully filtered, refrigerate the clarified milk until ready to use.