Given a paragraph about cooking, and a set of conversational questions and answers about the paragraph, say whether the passage contains sufficient information to answer the follow-up question. Say Yes if it is answerable; otherwise, say No. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`, and the follow-up question has a prefix `FOLLOWUP_Q:`.

[Q]: CONTEXT: Flour (+ water, either directly or from other ingredients such as egg white) gives the pastry structure. As you knead the flour, the gluten network develops and results in elasticity. When cooked, water evaporates from the dough leaving a rigid gluten skeleton. Fat does not mix with water and thus stay in blobs in between the gluten network. This weakens the gluten structure, making the pastry crumble.For this reason, you often see in recipes for shortcrust to avoid overmixing the fat. Buttery biscuits such as shortbread crumble more than crackers, which have more water. The same rationale applies to puff pastry. The thin fat layers are impermeable, so water steam gets trapped and exercise pressure upwards, lifting the pastry up.Quoting @GdD in the comments, the punchline is:more fat = crumblier, less fat has more structure.  <sep>  Q: How does altering the fat-to-flour ratio affect the pastry? A: more fat = crumblier, less fat has more structure  Q: Is it only crumblier after it bakes? A: The thin fat layers are impermeable, so water steam gets trapped and exercise pressure upwards, lifting the pastry up  Q: Does the type of flour effect the mixture? A: Flour (+ water, either directly or from other ingredients such as egg white) gives the pastry structure. As you knead the flour, the gluten network develops and results in elasticity  Q: Can you knead the dough too much? A: For this reason, you often see in recipes for shortcrust to avoid overmixing the fat. Buttery biscuits such as shortbread crumble more than crackers, which have more water  <sep> FOLLOWUP_Q: What fat can you use in place of butter?
[A]: No


[Q]: CONTEXT: Just an idea... I've had problems making foam because of hard/basic tap water (a lot of chalk in the water) - making frape though, not garlic foam:) Foam will more easily form in soft water as you can easily test with a piece of soap. If you have hard tap water you could try using boiled water (some of the chalk in the water will react and leave a residue on the bottom of the pot) or bottled water with pH 7 (neutral). Another idea would be to add just enough acid for neutralisation but I imagine that could be a bit tricky and you'd risk the milk curdling so I wouldn't recommend it.  <sep>  Q: This is my first time making a foam using soy lecithin but I want to know why there was not enough foam? A: Just an idea... I've had problems making foam because of hard/basic tap water (a lot of chalk in the water  <sep> FOLLOWUP_Q: I put the foam I did get from my first try in the fridge. Is there any way to salvage this?
[A]: No


[Q]: CONTEXT: Thanks for adding the photo, Ford, as I think I know what it is. Although your photo is nicely focused, it's not the real thing so I can't be 100% sure. It looks to be the built up bits of grease and other residues from the bottom of your cooking pans that have accumulated over the 5 years. Not saying you slopped lots but the smallest amounts of spatter from cooking will add up. I moved 6 months ago into a place with a new stove and I've done my best not to spill food and to always wipe up right away but I've noticed the burners getting marked. It doesn't wash off either. Do you find the elements you cook on the most are more marked?But to answer your original question whether the scratches affect the burners' performance, the answer is no. All they need to be able to do is heat up and even a knick in the metal wouldn't stop it from heating.  <sep>  Q: Do scratches on electric range burner elements affect its performance or function?
[A]:
Yes