Detailed Instructions: Given a paragraph about cooking, and a set of conversational question answers about the paragraph, answer a follow-up question from the paragraph. The paragraph has a prefix 'CONTEXT:'. Each conversation question has a prefix 'Q:' followed by answer prefix 'A:'. The final followup question has a prefix 'FOLLOWUP_Q:'.
Q: CONTEXT: Yes, you can use eggs well past their "sell by" date. A week past shouldn't have a noticeable difference.The older the eggs get, the more evaporation that will take place (because the eggs are washed, so they don't have a protective layer).You will notice in older eggs that there's a growing pocket of air inside the egg when you break them. (for me it tends to be on the more rounded end, but I don't know if it has to do with how you orient the eggs in storage).I know that I've used eggs more than a month past the "sell by" date, and I wouldn't be surprised if I've gone two months. It's only really a problem in baking, as the egg whites won't contribute the same amount of moisture as if they were fresh. And maybe for hard boiled eggs if you want them pretty, as you'll end up with a void where the air pocket is.  <sep>  Q: How long can refrigerated eggs last past their date? A: I know that I've used eggs more than a month past the "sell by" date, and I wouldn't be surprised if I've gone two months  <sep> FOLLOWUP_Q: how can you tell if they are bad?
A:
You will notice in older eggs that there's a growing pocket of air inside the egg when you break them