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    Madrid, Spain

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  1. We have had some discussions about the unit here in Spain in a cooking chat group. Some members have seen the presentations by those "elite chefs" and even talked to them, and some bought the unit. My contention has always been -and the owners of the unit could not prove me wrong- that this is just an electric pressure cooker. It just has programs to cook with or without pressure, but those programs (like the ones promoted by the chefs for the black caulifrower and the like) do not advertise their actual pressure/temperature combinations anywhere. There are no physics I can think o
  2. No, you're absolutely right in your statements. I would not dare to follow such a recipe.
  3. I totally agree with you. Some thoughts: 1) A book which is just about sous-vide recipes would be ok for me without much theory, but the thread seemed to be about good SV books to learn. 2) Many of the books suggested are not announced (or inferred by their names) as just recipe cookbooks, but as general books about SV, some of them even saying "Complete", "Techniques", etc. In those cases, ignoring the critical things I've mentioned above is an important flaw to me. 3) SV itself lends more to theory than to recipes when compared with most other
  4. Thanks for the suggestions, rotuts. The second one looks terrible, just by looking at the pages available in amazon. It does not seem to include much theory/technique according to the table of contents, and the recipes are set for specific sizes (a 4-cm steak) without any explanation about how to adjust if your steak just happens to be 3 or 5 cm wide. Any serious book on SV must include a table on each recipe that includes core target temperature, water temperature (if different from target, i.e. when applicable), time (which, if it depends on width, should be explained or options given), safe
  5. I've read those chapters and this would be another example of what I said above. No mention whatsoever of how time (for tender cuts) depends on size and how it can be calculated. No safety details neither. Those two issues are "forgotten" by most books, whereas both topics can perfectly be covered at an introductory level, and they should be.
  6. That's total nonsense. Science and experience say exactly the opposite, if the profile is selected correctly.
  7. There are 3 conditions for a safe storage time like that (and normally I've seen 21 days, not over a month): 1) Full pasteurization (equivalent to 6,5D reduction in Salmonella) - and see my concern about pasteurization for your profile in my previous message; 2) Rapid cooling, to <3ºC in less than 2 hours - don't know whether you do this; and 3) guaranteed storage at <3ºC - though you say you fulfill this, a home refrigerator may have its door open frequently and it is typical that it gets temperatures higher than 3ºC even it its coldest areas.
  8. About the chuck roasts, that profile is, to me, quite risky. Let me quote/repeat what I said to the ChefSteps team (they never bothered to answer) for a profile at 54ºC (this has also been discussed here in the past): I am concerned about the suggestion to go as low as 54ºC for such a long time. The rule that Douglas Baldwin established himself, and now he works with ChefSteps, was that the safety minimum threshold for long cooking times was 54.4ºC. Furthermore, when we push the limits like this a small error in our equipment calibration can be critical, so this is, to me, just pus
  9. Going back to the original question about SV books. I teach Sous-Vide classes and try to evaluate all new publications on the topic. Lately there are a lot of new books but most of them look disappointing. The ones I've finally bought were, in fact, quite disappointing. I personally find that any SV book needs to explain some theory, in fact more theory that for most other cooking techniques. Safety is quite different from other techniques and how it does differ must be explained minimally, in my opinion. It should also empower minimally the reader to be able to cook SV without a recipe, i.e.
  10. In fact I own the book and find it quite uninteresting. Barely any theory, and recipes that don't call my attention.
  11. Not at all (the chicken, I mean).
  12. I though my messages in this sense were largely ignored by the community here, so happy they are useful for someone Some recent research points out possible problems in the same vein as the ones highlighted in the post you link. The article Genetic determinants of heat resistance in Escherichia coli shows some strains of E. coli that survive core temperatures of 71ºC, which, extrapolated to our usual sous-vide core temperatures would imply much much longer times that Baldwin or SousVideDash tables currently provide. On the other hand, those bad news are somehow compen
  13. As a tender cut, you just need to reach temperature at core and, if desired, add time for pasteurization. Given your water temperature and meat thickness, you would have needed just about 1:30 h according to SousVideDash, and about 2:30 h for pasteurization. Meat kept at a given temperature in the water bath is ok for a good amount of time, but your profile doubled the required pasteurization time, so that's likely the reason for bad texture, typical of too long cooking of tender cuts. If you salted the meat in advance that would not help neither. Never salt meat tender cuts before
  14. Changed the color, and removed all equipment brands except Polyscience ones. Still there are generic circulating and non-circulating though, which should do the job. For a while both versions were available in the App Store, but SousVideDash was removed about a couple of months ago, which is a pity.
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