诸豆皆可为之。惟黑者入药。有盐淡二种。惟江右淡者治病。造淡豉法。六月内。
大豆二三斗。淘净。水浸一夜。沥干蒸熟。取出摊席上。候微温。蒿服覆。每三日下看
黄衣上遍。（不可太过）取晒簸净。以水拌干湿得所。（汁出指间为准）安瓮中。筑实。
盖。浓三寸。密封泥。于日中晒七日。取出曝一时。又以水拌入瓮。如此七次。再蒸过
去火气。瓮收筑封。即成矣。
味苦甘而涩。气微温。（非苦温不能发汗开腠理。治伤寒头痛寒热及时气恶毒也。仲淳）
得醯
化
复及余毒。止暴痢血痢。方书治喘哮
疼冷。（别录）物经蒸窨。
别者。取一药兼疗之。凡初觉头疼。身热脉
一升。绵裹。水三升。煮一升。顿服。
再不汗。加麻黄三两。（肘后方）春夏之
胸中。非宣剂无以除之。如伤寒短气烦躁。
汤吐之。脏毒下血。用淡豉十文。大蒜二枚
安乃止。此药甚妙。但大蒜九蒸乃佳。以冷齑水
丸。每服三十丸。盐汤下。 喘痰积。天雨便发
遇阴气触动则发。用淡豆豉一两。蒸捣如泥。入
水送下七丸。甚者九丸。小儿五丸。高枕仰卧。一
性亦随而出。病根永断矣。服后。忌食热物。寒热
桂木于舌下咽之。风毒膝挛骨节痛。用豉三五升。九
饮。妇人难产。乃儿枕破与败血裹其子也。以胜金散
裹了烧赤。研细。入麝香一钱。为末。取秤锤烧红淬酒。
浓汁。与三五口。其毒自下。又能助脾气。消乳食。
〔论〕味咸入肾。黑大豆为肾之谷。而味却甘。何也。盖足三阴同气于下。水土之合德
以立
营运。
湖所谓
缘脾
又为
令
伤
宣
之
各种豆类都可以用来制作豆豉，但只有黑色的豆子入药。豆豉有盐渍和淡制两种，只有江西产的淡豆豉用于治疗疾病。
制作淡豆豉的方法：在六月内，取大豆二三斗，淘洗干净，用水浸泡一夜，沥干水分后蒸熟。取出摊放在席子上，待其微温时，用蒿草覆盖。每三天查看一次，直到豆面上长满黄色的菌衣为止（注意不要过度）。然后取出晒去灰尘并簸净，用水拌湿至干湿适宜（以汁液从指间渗出为准）。装入瓮中，夯实，盖上盖子，厚度约三寸，用泥密封。放在烈日下暴晒七天，取出晾晒一时辰，再用水拌匀放入瓮中。如此重复七次，最后再蒸一次以去除火气，收纳入瓮中夯实密封，即成。
淡豆豉味苦、甘而涩，气微温。（仲淳注：非苦温之性不能发汗开腠理，治疗伤寒引起的头痛、寒热及时行疫气的恶毒症状。）它能化解醋的酸腐之气及余毒，止住暴痢和血痢。方书中记载治疗喘哮、疼痛寒冷。（《名医别录》）药物经过蒸煮和发酵窨藏后，性质发生变化。
另有单方：取淡豆豉一升，用绵布包裹，加水三升，煮取一升，一次性服下。如果还不出汗，加麻黄三两。（出自《肘后方》）春夏季节，若胸中有邪气阻滞，非宣散剂无法消除。如伤寒导致的短气烦躁，可用此法。脏毒下血，用淡豆豉十文，大蒜两枚，捣烂制成丸药，每次服用三十丸，盐汤送下。对于因阴气触动引发的喘痰积滞，天雨便发作的病证，用淡豆豉一两，蒸熟捣烂如泥，制成丸药，水送下七丸，重症九丸，小儿五丸。服药后高枕仰卧，病根可永断。服药后忌食热物。
此外，桂木含于舌下咽之，可治风毒膝挛骨节痛。用淡豆豉三五升，裹上烧红，研细，加入麝香一钱，为末。取秤锤烧红后淬入酒中，取浓汁与患者喝三五口，其毒自下。又能助脾气，消乳食。
妇人难产，是因为儿枕破败与瘀血包裹胎儿所致。用胜金散（此处原文似有缺漏或混淆，通常胜金散为另一方，但依原文语境理解为用淡豆豉相关疗法或配合其他药物，此处仅翻译字面意思），将淡豆豉裹了烧赤，研细，入麝香一钱，为末。取秤锤烧红淬酒，饮浓汁三五口，其毒自下。又能助脾气，消乳食。
〔论〕味咸入肾。黑大豆为肾之谷，而其味却甘，为什么呢？因为足三阴经在下部同气相求，水土合德以立营运。所谓脾……（原文至此中断，语义不全）
Various beans can be used to make it. Only black ones are used in medicine. There are two types: salted and unsalted (Dan Chi). Only the unsalted variety from Jiangxi is used for treating diseases.
The method for making unsalted fermented soybeans (Dan Chi): In June, take two or three dou of large soybeans, wash them thoroughly, soak them in water overnight, drain the water, and steam until cooked. Take them out and spread them on a mat. When they are slightly warm, cover them with mugwort stalks. Check every three days until a yellow mold covers the surface completely (do not let it over-ferment). Then take them out, sun-dry, and winnow clean. Moisten them with water to an appropriate degree of dryness and wetness (the standard is when juice exudes between fingers). Place them in a jar, pack tightly, cover, with a thickness of about three cun, and seal tightly with mud. Sun-dry in the sun for seven days. Take them out and expose to air for one shichen (two hours), then mix with water again and put back into the jar. Repeat this process seven times. Finally, steam once more to remove the "fire qi," store in a jar, pack tight, and seal. It is now ready.
It tastes bitter, sweet, and astringent, and its nature is slightly warm. (Zhong Chun noted: It is not bitter-warm that cannot induce sweating and open the interstices to treat headache, chills and fever caused by Cold Damage, and toxic heat from seasonal epidemics.) It resolves acidity from vinegar and residual toxins, stops acute dysentery and bloody dysentery. Medical texts state it treats asthma and wheezing, pain, and cold sensations. (Ben Cao Jing Jiu) After steaming and fermenting, its properties change.
Another prescription: Take one sheng of Dan Chi, wrap it in silk gauze, add three sheng of water, boil down to one sheng, and drink at once. If sweat does not occur, add three liang of Ephedrae Herba (Mahuang, 麻黄). (From Zhou Hou Bei Ji Fang) In spring and summer, if there is obstruction in the chest, only dispersing agents can eliminate it. For example, shortness of breath and irritability due to Cold Damage... [Text fragment] ...dysentery with blood, use ten wen worth of Dan Chi and two cloves of garlic, mash into pills, take thirty pills each time, washed down with salt water. For accumulated phlegm and asthma triggered by yin qi and occurring during rainy weather, use one liang of Dan Chi, steam and pound into a paste, form into pills. Take seven pills with water, nine for severe cases, five for children. Lie down with head elevated after taking the medicine; the root of the disease will be permanently cut off. Avoid hot foods after taking the medicine.
Additionally, swallowing Cinnamomi Cortex (Guizhi, 桂木) under the tongue treats wind-toxicity causing knee spasms and joint pain. Use three to five sheng of Dan Chi, wrap and burn red, grind into fine powder, add one qian of Moschus (Shexiang, 麝香), and mix into powder. Take a hammer, heat it red-hot, quench it in wine, and have the patient drink three to five mouthfuls of the concentrated liquid; the toxin will descend naturally. It also strengthens spleen qi and aids digestion of milk and food.
[Discussion] The salty flavor enters the Kidney. Black soybean is the grain of the Kidney, yet its taste is sweet. Why? Because the three foot-yin meridians share the same qi in the lower body, and earth and water combine their virtues to establish circulation and operation. As for the Spleen... [Text cuts off]