Teacher:Given the background description of some cooking related query, summarize the question into a title
Teacher: Now, understand the problem? Solve this instance: I have an open bottle of lemon juice that I've been keeping in the fridge. I just took it out to dress a salad and it fizzed like soda when I opened the bottle and smells like... took me a minute to place it... yeast. What's going on? Should I throw it out?
Student:
Why is my lemon juice fizzing and smelling like yeast?