jeudi 12 février 2015

A seminar in NYC

From Anne McBribe, in New York : 

Hello all,
 
Sorry for the lag in between meetings this year---it's been a busy period for us. Amy Bentley's new book, Inventing Baby Food (not an affiliate link so click in peace), was released this past fall, and I have one coming out in a few months. But we look forward to seeing you this spring, starting with our February meeting, which will take place Monday, February 23, from 4:30 to 6:30 p.m. (note the time) in the Chemistry Department at NYU, room 1003 (31 Washington Place, between Washington Square Park and Greene Street). You will need a photo ID to enter the building.   

Lee DeHaan
will talk about his work to develop Kernza, a new grain crop, at The Land Institute in Salina, Kansas. Unlike all widely grown grain crops, Kernza is a perennial, meaning that after a single planting it will live for many years and bear numerous crops without reseeding. Perennials have tremendous potential to enhance sustainability by reducing pesticide and fertilizer contamination from agricultural lands and mitigating climate change through carbon sequestration. Dr. DeHaan's work includes genetic improvement of Kernza through plant breeding and efforts to develop markets for this exciting new grain. Sample foods made from Kernza will be provided.

 
Lee DeHaan has been a plant breeder at The Land Institute since 2001. Raised on a farm in Minnesota, he has a strong background in the everyday challenges of agriculture. His focus is development of Kernza (wheatgrass) as a perennial grain. Lee earned a B.A. in Plant Science and Biology at Dordt College, and M.S and Ph.D. degrees in Agronomy, specializing in Agro-ecology, at the University of Minnesota.

 
Please RSVP at ecc022015.eventbrite.com. A link is also posted on our website. If you RSVP and can no longer make it, please let me know right away so that your seat can be released---thank you!   

All my best,


Anne 

----
Anne E. McBride
Director, Experimental Cuisine Collective 

lundi 20 octobre 2014

In NYC


Experimental Cuisine Collective
Experimental Cuisine Collective
October 2014 meeting
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The Experimental Cuisine Collective is a sponsor of reThink Food, a groundbreaking conference co-organized by The Culinary Institute of America and the MIT Media Lab taking place November 7-9 in the Napa Valley. Use the code RTFECC for a 10 percent discount when you register.
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Hello all,
 
  
We hope that you had a wonderful summer and early fall since we last saw you in June! Our first meeting of the academic year will take place on Thursday, October 30, from 5 to 7 p.m. (note the time!) in the Chemistry Department at NYU, room 1003 (31 Washington Place, between Washington Square Park and Greene Street). You will need a photo ID to enter the building.   
Building on his pioneering work in the science of molecular gastronomy, physical chemist Hervé This will introduce us to note-by-note cooking. 

Just as a modern composer builds a symphony out of waves of pure sound, so a meal can be created by a modern chef using pure molecular compounds to introduce novel consistencies, colors, flavors, and tastes. For instance, imagine the possibilities of limonene, a colorless liquid hydrocarbon that smells like citrus, in imparting citrus notes to a dish where it was not feasible before; imagine using sotolon, with this wonderful odor of nuts; imagine a blue food having the freshness of cucumber, the pungency of wasabi, or the crunchinesss of an apple.

Note-by-note cooking suggests new solutions to problems of nutrition, energy use, and water shortages, allowing for a more environmentally sustainable approach to the culinary arts.

Hervé This is a physical chemist on the staff of the Institut National de la Recherche Agronomique in Paris. His translated works include The Science of the Oven; Building a Meal: From Molecular Gastronomy to Culinary Constructivism; Kitchen Mysteries: Revealing the Science of Cooking; and Molecular Gastronomy: Exploring the Science of Flavor, all published by Columbia University Press.
 
Please RSVP at ecc092014.eventbrite.com. A link is also posted on our website. If you RSVP and can no longer make it, please let me know right away so that your seat can be released---thank you! 

All my best,


Anne 

----
Anne E. McBride
Director, Experimental Cuisine Collective 


ABOUT THE EXPERIMENTAL CUISINE COLLECTIVE
The Experimental Cuisine Collective is a working group that assembles scholars, scientists, chefs, writers, journalists, performance artists, and food enthusiasts. We launched in April 2007, as a result of the collaboration of Kent Kirshenbaum of the chemistry department and Amy Bentley of the nutrition, food studies, and public health department at New York University with Chef Will Goldfarb of WillPowder. Our overall aim is to develop a broad-based and rigorous academic approach that employs techniques and approaches from both the humanities and sciences to examine the properties, boundaries, and conventions of food.

Visit the ECC online at www.experimentalcuisine.com. 

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This email was sent to herve.this@paris.inra.fr by aemcbride@gmail.com |  


Experimental Cuisine Collective | New York University | 411 Lafayette Street | 5th Floor | New York | NY | 10003

vendredi 17 octobre 2014

Computers !

Which technology helped me most? Computers !
Indeed, in order to understand the answer, we have to consider the job that I am doing. All lies in the "scientific method", which consists in :
1- identification of a particular phenomenon
2- quantitative determination of the phenomenon
3- grouping the data into synthetic laws
4- inducing theory
5- looking for a testable consequence of the theory
6-testing the consequence experimentally
Of course, I don't need technology for the first step: here I just need to speak to cooks (sorry, I don't call them chefs, because they are not my boss and I hate this power relationship in the culinary circles).
Then, for the quantitative determination of the phenomena, the "characterisation", we use such machines such as NMR, GC-MS, etc. In the old times, analysis was very cumbersome, and for example, with the first machines, with paper printed after the electronics, we had to cut the signals with cissors before weighing the paper in order to get a value of the area under the signal.
But here, one parenthesis. I answered "computers", but indeed I teach that there are 3 big ideas for science and technology :
- use a balance
- always try to find a resonance if you want to make something precise (and here electronics becomes important, not only computers)
- use the "method of zero", and here electronics also is useful.
But let's come back to number 2: thanks to computers, we avoid plotting, and we can calculate with signals. Indeed the sole software (almost) in my computer is Maple, a wonderful software because it allows to make formal calculations as you would do with pencil and paper, but cleaner, more easily, etc.
Number 3: again computers are important, because you have to manipulate data. And here I remember that I have to explain why computers are important for calculation. When the trajectory of the moon was calculated by Delaunay, about one century ago (I should check this), the calculation was many months long! Pages and pages. Today, you just press the "enter" button, and it's done.
Number 4  : here we have to create a "discourse" by induction, we have to dream, to think, to invent... and as it's natural language, computers (and word processing softwares are so wonderful). Remember(you were not born;-) ) the time when you had to write with pencil and paper, or the time when you used typemachines! For my first book (a textbook for mathematics), I dropped hundreds of papers sheets in order to get a clean manuscript. Sure, I am not very smart, but anyway, it's a fact, and today, I am so happy to be able to use the return key in order to erase what I don't like, what is not right!
Number 5 : this is again calculation, and again Maple.
Number 6: and we come back to experiment, and analysis, and electronics.


mardi 7 octobre 2014

You said "healthy food" ?

Healthy food ? Healthier food ? 
 
Do you really think that people to eat healthy food ? I don't.
 
At the same time, they buy organic food... and they don't peel potatoes ! During the hot times, they eat BBQ, and they smoke, drink.
They want unsaturated fats, but eat chocolate.
And finally (indeed not finally, but the last exemple) there is no safe nutritional rule, except eating everything in small quantities, diverse, and make exercice, which is the contrary to what people do.
Then "healthy" ?

mardi 23 septembre 2014

Some facts on molecular gastronomy

Today, I got an email from a Spanish journalist, and he asked me this information :





Facts
Hervé This



Introduction.
Many things are said about Molecular Gastronomy and molecular cooking as well, and also about science, technology, technique, engineering… but I see much confusion.
I also see many mistakes, on which some wrong ideas are based. Honest people don't understand anything, in particular because so many people have a money or power interest to go on with confusion.
For example, on Internet, I see MG, and even my biography or pictures of me in the middle of advertising for various products (that i don't sell, because remember that I don't sell anything, having no shares in company). I don't say that the products are bad, but I say that MG and myself have nothing to do in such places. In particular, I want to say, and say again, that MG is not the same as molecular cooking, and that no chef is doing MG !
I am lacking time for fighting all the wrong theories and ideas, and I cannot fight all the wrong behaviours in this world. But sometimes I am upset : for example, I was able to see that some people organizing a conference said that I cancelled… whereas I was never invited ! For example, I could hear to myself at the tv, answering to a journalist that I had never met ! And I was said to be part of a political party to which I don't belong (a brain is not needed to belong to a party ; a spine is enough, said Einstein).
For all these reasons, and because some facts should be given, here are some facts.

History
For me, all began the 16 March 1980, evening, when I was preparing a cheese soufflé for friends who were invited for dinner. At that time, I was still a student at the Ecole de physique et chimie industrielle de Paris, (today l'ESPCI ParisTech), and we were used, with four friends, to work on our exams in my flat, while I was cooking for the group.
This particular day, I wanted to make a roquefort cheese soufflé, and I was using a Elle recipe. It was advised to cook first butter, roquefort, flour, and to make a roux, adding milk. Then the recipe was advising to add the egg yolks two by two.
For a rational mind, this sentence was strange : why adding the yolks two by two ? Why not all the yolks together ? Because I could not see the reason, I put all the yolks together, and the soufflé was a failure (I know today that this failure had nothing to do with this question of egg yolks). Indeed the failure was not complete, but anyway the soufflé was not as it should have been.
I did not focus on that, but I was not very proud of the result.
The next Sunday, the 23 March 1980, having again friends for dinner, I decided to make the same soufflé, and to improve. At that time, I needed a recipe, so that I used again the Elle recipe… and I could see, again, this sentence, « add the yolks two by two ». Because the last soufflé was not successful, I decided to test the idea, but I thought that if adding the yolks two by two was better than altogether, one by one should be better, and this is what I did… and the result was better. The next day, I decided to stay at home, and to make another experiment. This particular day I took a new notebook, and I decided to collect the « culinary old wive tales » (that I call today the « culinary precisions »).
For this work, with experimental tests, I had the lab that I am having at home since the age of 6 yeas old : since that time, my pocket money had been divided into half for this lab, and half for books. This lab was no longer in use, because in my Grand Ecole, we had better equipment, but suddenly, it was useful again, and I was so happy about that.
And this is how I began collecting culinary precisions from all culinary books taht I could get. I wanted to focus on all these strange ideas, because I realized taht it was strange that sometimes mistakes were transmitted. I wanted to make clearer and more reliable knowledge. For my tests, generally the main tools were thermocouple, microscope, balance, pH-meter.
At the same time, I got a job in the Belin Scientific Publishing Company first, then at Pour la Science (the French edition of Scientific American), and I was happy to be the editor of articles in food science and technology, but also in maths, chemistry, physics, physical chemistry, meeing the best scientists of France, and getting more and more scientific knowledge. I was living a double life, with scientific publishing on daytime, and my lab work on nighttime, week ends, etc. Very fast, this was known, and this is why probably I was invited to give seminars on my scientific research, first at the École normale supérieure de Paris, then at ESPCI, and this at that time also that I began collecting material for my book « Kitchen mysteries » (published in 1992 only).

In 1986, I met Nicholas Kurti. The ad officer of our magazine was coming from Europhysics Letters, where Nicholas was the editor. At that time, he was 78 years old. He was not any longer at the Clarendon Laboratory, of which he was a former director, but 400 meter away from there (a rule, in Oxford), in the Department of Engineering Science. There he was studying the application of tools and concepts of physics to cooking. Let's observe that this was a technological activity, even if Nicholas was interested in science. When our ad officer learned that I was doing the same kind of activity than Nicholas, she told me about his, and as soon as she gave me his phone number (the same day), I called him (I remember that I had the desk on the left of the redaction, at that time, ground level, near the garden ; I called him at about 6 PM)… and we became instantly friends. Nicholas told me that he would come to Paris the next week to see me… and he did. We met rue Racine, in a restaurant which was called Chez Maitre Paul.
We had a « poule au vin jaune et aux morilles », and we shared a wonderful bottle of vin jaune. I don't remember how our friendship developped, but we immediately collaborated : when one of us was doing an experiment, he called the other, and the other was repeating the experiment. My friend Philippe Boulanger, then the editor in chief of the journal, was annoyed that I spent so much time on the phone with Nicholas, but he did not say much (because I was doing my job anyway).
Also we shared most things. When I was invited to do something, I told Nicholas to be part of it, and Nicholas was doing the same. For example, we shared beging the « godfather » of a class in ENSBANA (now AgroSup Dijon), and he offered me to participate to the notes of a book at BBC Books. Here, I should say more, but later.

1988 : very fast, our discussions led us to analyze our activities. One day, in March, when I proposed him to make an International Society for something (this particular day, I was in my new larger office, first floor), he answered that it was too early, but we agreed that we could make the various people interested to meet. Nicholas had already (apparently, because I did not know it and I have no proof of it) discussed such a meeting with other people, such as Elizabeth Thomas, but it is in my office that we discussed really the idea. A name was needed, and I proposed « molecular gastronomy », because I wanted to make the same as « molecular biology », but Nicholas, physicien told the that he would prefer « molecular and physical gastronomy », and I was respectful of his demand, because I knew that he was a real physicist, and myself more a physical chemist. Later on, I think that I understand the real reason of why Nicholas wanted to add « and physical », and this was because apparently Elizabeth Thomas had proposed « molecular gastronomy » for another meaning, Liz being a cook rather than a scientist.
Whatever the reason, I thought, and I still think that « Molecular Gastronomy » was the right name to choose, because in « molecular biology », there is the fact that chemical and physical methods as well are used. And « molecular » is not restricted to chemistry, but it includes physical chemistry and chemical physics as well. Or « physical gastronomy » could have been a good choice, because physics means « science of nature ».
Anyway, we agreed on the name « molecular and physical gastronomy », and on the idea of making conferences. Nicholas told me that we could do that in Erice (I did not know it), and he called immediately Antonino Zichichi, the director of the Ettore Majorana Center for Sicentific Culture in Erice, Sicile. Zichichi asked us to show him the interest of the thing, and I proposed to invite the Nobel prize winners Jean-Marie Lehn and Pierre Gilles de Gennes, that I knwo thanks to Pour la Science, and also because Pierre-Gilles de Gennes was appointed the director of ESPCI when I was accepted as a student there. Pierre Gilles accepted, so that Zichichi accepted also. It was almost done !
Then, we had everything to invent. We knew that we wanted to make science, but we also wanted to study real culinary processes, and not only what amateurs can do. This is why we decided to invite chefs. Also, we wanted to promote new culinary techniques, based on physics and chemistry. And as we wanted to have friends from all over the world, we asked Harold McGee to be an invited directof of the first workshop. Harold accepted. Most often, all this was done by letter, phone or fax as email did not exist. I have still many documents, but the fax paper faded with time, because it was thermosensitive.
Also, we looked for sponsors, and we got champagne from LVMH.The lecture was a big success, with many new friends. 
Molecular and Physical Gastronomy was on its way... but he had made many mistakes. 
In particular, inviting chefs created a confusion because molecular gastronomy and "molecular cooking" (= cooking with new tools). Even today, I am fighting the confusion, because people often ignore that gastronomy does not mean "haute cuisine", but "knowledge about food". 
Anyway, it's not so serious, because now, with "note by note cooking", people will see a bigger difference between molecular gastronomy and note by note cooking. 
By the way, do you know what note by note cooking is ? 
Please look at that on the Internet, and remember that, if I introduced it, my lab is fully engaged in Molecular Gastronomy, and nothing else, because my real passion is science !

How beautiful is science !

I am writing from Palo Alto, where I have the happiness to be a member of the jury for the Google prize for science and technology (this is my wordings; for them it's Google Science Fair).
My happiness is not to be at the sun, in California... because I am working in the shadow of an office. It's not to be on the Google campus... because I don't care about campuses; nothing is more like a campus than another champus. And, anyway there is much secrecy in Google. My happiness is not to be in a jury, because it takes me time on my research.

No, my happiness is to meet young people crazy about science and technology. So crazy thaht they make wonderful things.
For example, one used online pictures of the night sky and worked in order to distinguish double images of quasars, because of gravitational lenses. Another one produced connected socks, because he wanted his grandfather having Alzheimer disease to wander in the night. Another built a system for cleaning water in poor countries. Another used graphene and titatium dioxide for the same kind of purpose, and so on.
They are between 13 and 18 old, and they do extraordinary things. I am sure that they will become great scientists or technologists... and we have the duty  to help them  to improve even better.
There is a drawback: there will be not a prize for any of them. And we had to choose. When non elected, they will be sad, of course; but on the other hand, there is a possibility  to encourage them.
To be discussed also: the issue of contests. Virtue is its own reward. Is not scientific work thesame? Should we work for a prize, or for a work? We have to  erase this aspect.
Anyway, science is so wonderful!

mercredi 17 septembre 2014

The 14 commandments in cooking !

Here there are, in French as well as in English


1. Le sel se dissout dans l'eau
2. Le sel ne se dissout pas dans l'huile
3. L'huile ne se dissout pas dans l'eau
4. L'eau s'évapore à toute température, mais elle bout à  la température de 100 degrés.
5. Le plus souvent, les aliments sont faits principalement d'eau (ou d'un autre fluide)
6. Les aliments sans eau ni autre fluide sont durs
7. Certaines protéines (dans les oeufs, la viande, le poisson) coagulent.
8. Le tissu collagénique se dissout dans l'eau quand la température est supérieure à 55 degrés.
9. Les aliments sont des systèmes dispersés
10. Certaines réactions (de Maillard, de Strecker, des oxydations, des caramélisations, des pyrolyses...) engendrent des composés nouveaux
11. Quand une préparation blanchit, c'est souvent qu'il y a foisonnement ou émulsion
12. La capillarité fait migrer les liquides
13. L'osmose a lieu quand des liquides de concentrations différentes sont séparés par une membrane appropriée
14. Les composés peuvent migrer par diffusion

1. Salt dissolves into water
2. Salt does not dissolve into oil
3. Oil does not dissolve in water
4. Water evaporates at any temperature, but it boils at 100 °C.
5. Most often, fresh products are made primarily from water (or another fluid)
6. Food without water or another fluid are hard.
7. Some proteines (in eggs, meat, fish) coagulate.
8. The collagenic tissue dissolves in water when the temperature is higher than 55  °C.
9. Food are generally disperse systems
10. Some reactions (Maillard, Strecker, oxidations, caramelizations,  pyrolysis) generate new compounds.
11. When food becomes whiter, during a process, it's often that there is a foaming or emulsification.
12. Capillarity moves liquids
13. Osmosis takes place when liquids having different concentrations are separated by an appropriate  membrane.
14. Compounds can move through diffusion