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: The proteins in a fresh egg are too viscous, even when thoroughly beaten, to wash a baked good.The water thins the proteins so you get a nice glaze instead of a layer of scrambled egg.Older eggs have sometimes degraded enough that they don't need the water but it is easier to always add water than to make a subjective judgement on the state of your egg proteins. <sep> Q: What's the purpose of adding water to an egg wash? A: The water thins the proteins so you get a nice glaze instead of a layer of scrambled egg <sep> FOLLOWUP_Q: Many recipes I've seen call for beating a tablespoon###or so of water in with the egg for an egg wash.###What is the effect of adding the water to the egg wash when baking?
[A]: The water thins the proteins so you get a nice glaze instead of a layer of scrambled egg

[Q]: CONTEXT: As someone who uses liquid nitrogen as part of their daily routine (in a lab) and who has made liquid nitrogen ice cream on several occasions, my advice would be to not use a plastic container to hold liquid nitrogen unless it's designed to. Yes, the plastic vessel may become brittle and may fracture. I have seen some materials shatter with extreme violence when frozen with liquid nitrogen; do not attempt this. Vessels for handling cryogenic liquids are designed especially for the job, and made from materials such as stainless steel, styrofoam, teflon, HDPE or silvered borosilicate glass. Unless you know with certainty that your container is designed to withstand temperatures of -196 C (-321 F), do not attempt this procedure. <sep> Q: Can you use liquid nitrogen in a food processor?###Will this break the container since it isn't made of steel? A: As someone who uses liquid nitrogen as part of their daily routine (in a lab) and who has made liquid nitrogen ice cream on several occasions Q: Will using liquid nitrogen in the container harm the food?###Do you know if anyone has tried it? A: the plastic vessel may become brittle and may fracture. I have seen some materials shatter with extreme violence when frozen with liquid nitrogen; do not attempt this Q: What kind of container would you recommend for this process? A: Vessels for handling cryogenic liquids are designed especially for the job, and made from materials such as stainless steel, styrofoam, teflon, HDPE or silvered borosilicate glass <sep> FOLLOWUP_Q: Which type of container will retain the temperature of the food better?
[A]: Unless you know with certainty that your container is designed to withstand temperatures of -196 C (-321 F), do not attempt this procedure

[Q]: CONTEXT: If it's refrigerated, it'll last for at least a week, as long as you didn't pre-dairy it. Unrefrigerated, I wouldn't trust it for more than a day. Coffee is a crappy growth medium and it should start out the next best thing to sterile, but, even covered, its going to start to get moldy.Obviously if you add dairy, then you're dealing with that dairy shelf-life, and that isn't very long at all. <sep> Q: How long is it safe to drink coffee after brewed? A: Unrefrigerated, I wouldn't trust it for more than a day. Coffee is a crappy growth medium and it should start out the next best thing to sterile, but, even covered, its going to start to get moldy <sep> FOLLOWUP_Q: Should it be refrigerated?
[A]:
If it's refrigerated, it'll last for at least a week, as long as you didn't pre-dairy it