Sometimes you buy a salad. before you eat it, you wonder, “has this gone bad?” Here are some quick tips to figuring it out:
1) It smells gross
Smell your salad. Does it smell gross, like a 3-day old animal carcass?  Then it’s probably gone bad. Normally, salad smells almost like nothing– or, vaguely, of something good.
2) It tastes disgusting
Generally people enjoy salad for its taste, and low calorie content. But if it tastes disgusting, like you just chugged from the large intestines of an entire village …