On Food And Cooking

By Harold J. Mcgee

• This red `On Food and Cooking, The Science and Lore of the Kitchen' by Harold McGee is a new edition of what is the most widely quoted culinary work in English. It may be almost as influential on the thinking of culinary professionals as Julia Child's `Mastering the Art of French Cooking' was on attitudes of American home cooking. The testimonials from the likes of Thomas Keller, Paula Wolfert, Jacques Pepin, and Rose Levy Beranbaum just begins to tell you how important McGee's volume has become. I was immensely pleased to see the exchange of acknowledgments between McGee and Keller to see how much the academic can learn from the professional chef.
  
  I can devote my thousand words on how good this book has been to the culinary world, but most of you already know that. What I will do is to list all the reasons one may wish to read this book.
  
  First, the book is simply interesting to amateur foodies and culinary professionals. This is the serendipity principle. If you prospect in a rich land, you will invariably find something of value. The `lore' in the subtitle is not an afterthought. The book includes history, linguistics and cooking practice in addition to simple science. In over 800 pages of densely packed narrative, one will invariably find something of interest, especially since the book covers such a broad range of topics, including:
  
  Milk and Dairy
  Eggs
  Meat
  Fish and Shellfish
  Fruits and Vegetables
  Seeds, Cereals, and Doughs
  Sauces
  Sugars and Chocolate
  Alcohol (Wine, Beer, and Distilled Spirits)
  Cooking Methods
  Cooking Utensil Materials
  `The Four Basic Food Molecules'
  Basic Chemistry
  
  Second, professional and amateur bakers should read all of the chapters on grains, doughs, chocolate, alcohol, basic molecules, and the chemistry primer, as this is the one area of culinary practice where knowledge of science can make the biggest difference between good and great results.
  
  Third, all culinary professionals who have anything whatsoever to do with teaching should read this book from cover to cover, twice. There is absolutely nothing more annoying than having a person in the role of teacher make a patently false statement in their area of expertise. The number of times a Food Network culinary celeb misuses the term `dissolve' when they really mean `emulsify' or simply `mix' would fill volumes. It is still a common mistake to say that searing protein seals in juices.
  
  There are many good reasons for searing. Preventing the escape of liquid is not one of them. Even Brown himself has made some gaffs in print and on `Good Eats' such as when he described a very corrosive compound as a strong acid rather than a strong base. He confused one end of the pH scale with the other.
  
  Fourth, anyone who has ambitions to develop their own recipes should read those chapters which deal with the major foods such as dairy, meats, fish, fruits, and vegetables, with a premium on the material on milk and eggs. Two defining characteristics of science are that it explains things and it predicts things. Most people understand the first but may not appreciate the second.
  
  One can predict, for example, that if you use too little fat in a milk or cream based gratin, the dairy will curdle, so, if you are playing around with your favorite mac and cheese recipe, do not be so quick to reach for that skim milk, as you are likely to be very disappointed with the result. Similarly, if you crave some Saturday morning buttermilk biscuits and the nearest carton of buttermilk is a 30 minute drive away, AND, you have no vinegar, AND you have no citrus, there is just a chance that your aging cream of tartar dissolved in milk will save the day, since this is an acidic salt which will stand in for the acidity in the buttermilk. As a former professional chemist, I can assure you that pure inorganic salts like cream of tartar simply do not go bad.
  
  What separates good from great cooks is using this technique to test raw materials. This is the truest marriage of science and cooking, following the maxim of Daniel Boulud who stated that to be really great, the journeyman cook must repeat the same procedure thousands of times to the point where the result is utterly reproducible and the cook can detect the desired endpoint easily by eye, nose, and mouth. Sounds like science to me.
  
  The author's introduction presents an excellent case for rereading the book in its second edition as he cites the great changes in food culture over the last twenty years. This is also a great case for anyone who is interested in any aspect of food.