乳糖 Jeotsatang (젖사탕)

Original, read line by line 東醫寶鑑 · Tangaek — Decoctions vol. 2

1. 性寒, 味甘, 無毒. 安五藏, 益氣.

   Its nature is cold, its taste sweet, and it is non-toxic. It settles the five jang (五藏, five viscera) and augments qi.

   HomiclubYudang was an old confection made by boiling down cane sugar and blending it with cow's milk until it set. It is not the milk sugar (lactose) that the same characters denote today; the method described is closer to a milk caramel.

2. 主心腹熱脹, 口乾渴. 性冷利.

   It governs heat distension of the chest and abdomen and dryness and thirst of the mouth. Its nature is cold and freely draining.

3. 笮甘蔗汁以爲沙糖, 煉沙糖和牛乳爲乳糖. 《本草》

   Sugarcane juice is pressed out to make sugar, and the sugar is boiled down and blended with cow's milk to make yudang (乳糖, milk sugar cake). 《Boncho (本草)》

   HomiclubGamja (甘蔗) is sugarcane, a tall perennial grass of the tropics and subtropics. Korean winters are too cold for it, so sugar here is largely imported.

4. 一名石蜜, 今謂之乳糖. 川浙最佳.

   It is also called seongmil (石蜜, stone honey), and now it is called yudang. That from Cheon (川, Sichuan) and Jeol (浙, Zhejiang) is the finest.

5. 用牛乳汁, 沙糖相和煎之, 幷作餠, 堅重. 《丹心》

   Cow's milk and sugar are mixed together and decocted, then formed into cakes, which are hard and heavy. 《Dansim (丹心)》

6. 又謂之捻糖, 多食, 生長蟲, 損齒, 發疳䘌. 《本草》

   It is also called yeomdang (捻糖, kneaded sugar). Eating much of it breeds long worms, damages the teeth, and brings on gamnik (疳䘌, childhood malnutrition with sores). 《Boncho (本草)》

7. 或云, 沙糖和牛乳雞子淸相和, 捻作餠, 色黃白.

   Some say that sugar is blended with cow's milk and egg white, kneaded into cakes, and that the color is a yellowish white.