Given a paragraph about cooking, and a set of conversational question answers about the paragraph, generate a relevant question to the topic of the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`.
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Question: CONTEXT: The old thin utensils were made of Nylon.The reasons they are hard to find is that traditional Nylon is difficult to manufacture within food standard guidelines for PAA (Primary Aromatic Amines) migration, and does not bio-degrade or burn safely. For relevant references, your local government health department will have papers on PAA migration.Given that, many utensil manufactures have moved on to other plastics, mostly silicone. Though some use PA66 (Nylon 6,6), which is that thick chunky black plastic stuff.Try wooden spatulas. They are simple, clean, disposable, and you can get them in thin wedge shapes (e.g. at Asian supply shops).  <sep>  Q: Where did the thin, smooth plastic spatulas go? A: The reasons they are hard to find is that traditional Nylon is difficult to manufacture within food standard guidelines for PAA 

Answer: Why did manufacturers stop making thin, smooth plastic turner spatulas?


Question: CONTEXT: Marshmallows expand so much because the water in them becomes steam, and gas takes up a LOT more volume than liquid. Specifically, 1 mL of water becomes ~1.36 LITERS of vapor, before it gets heated further. That's 1000-fold expansion, before you add additional expansion as the gas is heated. Marshmallows don't have all that much water content, but when it's trapped in a stretchy gelatin matrix that holds gas readily, it only takes a bit to blow the whole thing up like a balloon.You are correct that the gas expansion on its own is insufficient; unless I've badly muddled my calculations, gas expansion from 20C to ~150C (caramelization temperature) will increase the gas volume by under 50%.  <sep>  Q: Why do marshmallows poof up so huge when put in the microwave? A: Marshmallows expand so much because the water in them becomes steam, and gas takes up a LOT more volume than liquid. Sp  Q: How big can they puff up? A: Specifically, 1 mL of water becomes ~1.36 LITERS of vapor, before it gets heated further 

Answer: How long do you put them in the mircorwave for?


Question: CONTEXT: If a lid doesn't have a vent and the pot does not have any sort of locking mechanism like a pressure cooker, then the pressure of the steam inside will lift the lid off the pot and steam will escape. That was the "dancing" of the lid that you experienced. Venting holes in a lid just let some steam escape so the lid doesn't bang around, having a vent hole or not wouldn't make your idli's sticky.  <sep>  Q: When lids have a space that you can open slightly on top is that for steaming? A: If a lid doesn't have a vent and the pot does not have any sort of locking mechanism like a pressure cooker  Q: Do they need to have both, a cover vent and locking mechanism, for it to be done properly? A: pressure of the steam inside will lift the lid off the pot and steam will escape. That was the "dancing" of the lid that you experienced 

Answer:
That does not seem to answer my question so I will move on. Do you have to steam vegetables differently than meat?