I Sell Spicy Strips in the Great Qing

[Transmigration + alternate history + political intrigue + lighthearted, satisfying comedy] Transmigrating to the thirtieth year of the Qianlong reign in the Qing dynasty... As a chemistry student, it's my duty to spread knowledge. “What? The courtesans aren't sexy enough? Get those black stockings on them!” “What? The laundresses can't get the clothes clean? Tell them to use washing powder!” “What? Princess Yi loves spicy food? Someone, take her some spicy snack strips!” “What? The prince is too hot to sleep? Turn on his electric fan!” “What?” “Qianlong can't win his wars?” “Bring me my AK-47!”