After I Smashed the Diner's Secret Sauce, I Went Wild

In the back kitchen of the diner, the boss told me to reheat yesterday's leftover house special sauce and mix it into the braised pork we were cooking fresh today. I looked at that basin of sauce giving off a sour smell, and my stomach turned. In my last life, I was young and didn't know better, so I just did it. That same night, more than fifty customers were hospitalized with acute food poisoning, and three children couldn't be saved and died.