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 primary reason is definitely convenience. If you don't want skin and seeds in your sauce, then you have to do some work to avoid it. Yes, it's possible, e.g. passing through a food mill, or blanching and peeling plus retaining only the flesh, but having it already done is a whole lot easier.Passata is usually much thicker too, so it won't need as long a cooking time to reduce into a non-watery sauce as fresh tomatoes. On top of that, you don't have to worry about whether you can find good fresh tomatoes, e.g. if it's winter and they're out of season.Your two cases for comparison seem to overlook this: if you just chop and cook, you'll have skin and seeds in your sauce, as well as excess liquid to cook down, while if you use passata, you won't. (Also, for what it's worth, you'd need pretty giant tomatoes to get the equivalent of 3/4 cup of passata out of one tomato.)Of course, if you don't mind skin and seeds, it's also perfectly fine to simply cook fresh tomatoes and be done with it.Note that you can often get similar advantages from other canned tomato products. In the US, crushed tomatoes are far more common, and a roughly similar texture. (Peeled whole tomatoes, diced tomatoes, tomato sauce, and tomato paste can also be useful depending on what texture you're aiming for.)  <sep>  Q: What exactly is Passata? A: crushed tomatoes  Q: Is it better to use Passata instead of fresh tomatoes? A: The primary reason is definitely convenience  <sep> FOLLOWUP_Q: Is the procedure that much more difficult to use fresh tomatoes instead of using Passata?
[A]: f you don't want skin and seeds in your sauce, then you have to do some work to avoid it


[Q]: CONTEXT: Sous vide cooking is a function of temperature and the surface area to volume ratio of the food in question.If you have a high surface area to volume the cooking time will be shorter. Steaks would have a higher ratio than the roast so they would take less time than the roast. The amount of the time difference is difficult to predict exactly over such a long time scale, but a rough calculation of the ratio I spoke of would be a good starting point for a compensation factor.If you have the time and your water bath can accommodate, I'd suggest keeping the roast whole and finishing in a skillet. It's much more impressive than a steak.  <sep>  Q: Sous vide chuck roast or chuck steaks? A: Sous vide cooking is a function of temperature and the surface area to volume ratio of the food in question  Q: Have you ever had any experience with sous vide cooking? A: If you have a high surface area to volume the cooking time will be shorter. Steaks would have a higher ratio than the roast so they would take less time than the roast  <sep> FOLLOWUP_Q: I have a 3 lb chuck roast I'm not sure what the exact cut shape is but it's vaguely cube-shaped if we cut the roast into steaks before baking and cooking what would the effect have on this cooking
[A]: If you have the time and your water bath can accommodate, I'd suggest keeping the roast whole and finishing in a skillet. It's much more impressive than a steak


[Q]: CONTEXT: The easiest method, and most common in a commercial setting, would be to add a small amount of yeast in addition to the sourdough starter. You will probably have to reformulate a bit, as the dough will mature faster leaving the starter less time to develop flavor. This is usually overcome by also increasing the proportion of starter (and adjusting the final dough's hydration based on the hydration of your starter).For instance, if your original recipe included 30% starter (in baker's math), the faster version might have 40% starter and .5% yeast. If you use a liquid starter, you may then cut the water by 5% or so, and if you use a solid starter no further adjustment may be needed.  <sep>  Q: How can I "cheat" on dough maturation? A: The easiest method, and most common in a commercial setting, would be to add a small amount of yeast in addition to the sourdough starter  <sep> FOLLOWUP_Q: How can I make a good focaccia in less than 24hours to a day and a half?
[A]:
This is usually overcome by also increasing the proportion of starter (and adjusting the final dough's hydration based on the hydration of your starter