Production process 7.1 Wash the sweet potato leaves, put them into boiling water with 2g of soda ash added, and simmer on high heat for 2 to 3 minutes (keep the sweet potato leaves green), pick them up, wash away the alkali smell with clean water, and squeeze out the water. Chop with a knife. 7.2 Remove the stems of the straw mushrooms and soak them clean. Add chicken oil, 150mL of soup, refined salt, MSG, and lean meat. Steam over medium heat for 30 minutes, take it out, remove the lean meat, and drain the juice for later use.