Top critical review
Theoretically exceptional, but scientifically lacking
Reviewed in the United States on November 24, 2018
Disclaimer: I have not read the entire book yet, updates to follow ASAP.
This is an amazing concept for a "cookbook", and I absolutely love the setup and flow of the text. It keeps me engaged by presenting information concisely, but manages not to be dry or overwhelming.
I was so sad to find a pretty glaring scientific error at the very beginning of the book in the section entitled How Salt Works (subsection Cooking Foods in Salted Water, pg 35-37). I have a lot of sympathy for typos and grammatical errors as they don't typically effect my comprehension of the subject matter, but this was a more serious problem with the science being presented. Specifically, Ms. Nosrat has conflated salt (NaCl) with all minerals, and presents the idea that salting cooking water enough will prevent osmosis of nutrients and minerals from inside whatever is being cooked into the water. Le Chatelier's principle dictates that osmosis over a permeable barrier (like the skin/flesh of a green bean) occurs when there is an imbalance of a particular mineral or compound, ergo, the only thing adding NaCl potentially prevents is leeching NaCl, Na, and Cl. Other minerals and nutrients will freely pass out of your food and into the water as easily as they do in unsalted cooking water. Steaming and other cooking methods might mitigate this issue as exposure to water is limited, however, I expect these processes might yield similar results if food is cooked to the same extent. The way we account for this nutrient loss, in reality, is by eating more of a given cooked food than we would its raw counterpart, which is what cooking allows us to do by physically breaking foods down!
I hope this is the only error of it's kind because it is quite confusing and misleading, but I'm not at all confident that I could discern a similar future error. I gave the book 3 stars simply because of my skepticism of the underlying science and the authors understanding. I guess we just have to take it with a grain of salt. ;)