Tidbits: edible perfume, text-art grilled cheese, and more pink slime


ultrasonic homogenization 600x313 Tidbits: edible perfume, text art grilled cheese, and more pink slime

ultrasonic homogenization via the Toronto Food Lab. Click image for full post.

We’re planning some changes here at Science Fare in the next few weeks. For those of you who follow the RSS feed, apologies in advance for any growing pains!

Featured

These past few weeks, we’ve really enjoyed reading up on the exploits over at Toronto Food Lab. Here’s a small sample of their experiments:

Inspiration

News

Drinks

Nutrition

  • A few weeks ago we posted about the “pink slime controversy”. But when you think about pink slime in the context of our modern food system, it’s worth asking: Is pink slime being unfairly demonized?

Hacks

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Culinary Innovation 101

120507 culinnovation 600x450 Culinary Innovation 101

Over the past semester, I’ve been “designing the course of the future” through a weekly seminar series about innovative education strategies at Harvard University. I recently presented my proposal for a course about culinary innovation, to teach basic problem solving skills to undergraduates (click the poster above for a larger version). One of the most exciting aspects of being involved in the Science and Cooking course has been working with a range of chefs, including quite a few in the Boston area. I’ve learned so much from my interactions with them, and wanted a way to establish deeper collaborations between them and students at Harvard. At the same time, I’ve also become quite interested in how design consulting firms, like IDEO or Continuum, solve problems, and wondered whether that could be tied into the course. Below are some excepts from my proposal:

Culinary Innovation 101 

The target audience for the class is students who are passionate about solving problems and have some basic scientific background. In most school systems, students are presented an overly simplified view of the scientific method: question, hypothesis, experiment, results, and discussion. In actual scientific and culinary investigation, the process is more flexible and iterative. The culinary world is a great testing ground for developing problem-solving skills, since the results are tangible and the time-scale for finding an answer is fast. Even if the participants don’t have a strong culinary background or desire to work in the food industry, they will still gain valuable insight into the process of innovation. The objective is to practice a general problem-solving approach that can be applied to any scientific or engineering problem that also has a human factors component.

The inspiration from this class came from the recent trend towards stronger connections between the scientific and culinary worlds. Throughout history, technology has been used to improve the nutrition, safety, and flavor of food. For much of the past century, professional food scientists were the only ones applying scientific principles to the food preparation process. More recently, numerous collaborations between chefs and scientists have fueled a new wave of creativity. At the fine-dining level, chefs like Ferran Adria and Heston Blumenthal have employed new techniques and ingredients, such as rotary evaporation and liquid nitrogen, for novel culinary experiences. Since the publication of On Food and Cooking by Harold McGee in 1984, quite a few people have pursued careers at the intersection of food and science, such as Dave Arnold (Cooking Issues), Chris Young (Modernist Cuisine), and Kenji Alt (The Food Lab). Despite the diversity of backgrounds, they all share the goal of using a scientific process to address culinary problems, whether it is the creation of a new dish or the evaluation of traditional methods of cooking.

Although the top investigators follow different approaches, their activities can all fit within the general design paradigm, which is exemplified by design consulting firms such as IDEO and Continuum. We’ll use this as a framework for structuring the class:

  1. Observation: what are the most relevant questions for chefs?
  2. Ideation: how can you combine insights from research scientists, food technologists, professional chefs, and others to answer this question?
  3. Experimentation: how can you use a shotgun approach to rapidly explore the space of possible variables?
  4. Presentation: how can you design an experiment such that its results will provoke the audience to adopt a new cooking technique or to conduct further experiments of their own? The students will post the results of their original experiments to a public course website, with explanations of the underlying scientific principles. The goal is to receive feedback from home cooks and professional chefs.

Another vital component of the problem-solving process is teamwork. Students will work in small teams for each of the cycles, so that they will learn from the distinct perspectives of their classmates.

For a better understanding of the culinary world, students will visit the kitchens of partnering restaurants and other food establishments. They will then do their own experiments in an on-campus culinary lab, which could be a dining hall kitchen between shifts or similar space. After an initial safety training, they will be able to work in the space on their own schedule. Even if such spaces are unavailable, students could do some experiments at home, including with modern ingredients, using on-line suppliers like Modernist Pantry.

This course will be split into three cycles of four weeks, so that students can experience collaborations with up to three different restaurants. This will also allow them to incorporate feedback into their future experiments and presentations. For instance, they may find that they need to take more photos during the documentation phase or to control for more variables in their experimental design.

The final grade will be a combination of their restaurant visit write-ups, their experimental results, and their public blog posts, as well as overall class participation.

 naveen photos 450x600 Culinary Innovation 101

Making it Happen

There are already several design-oriented classes at Harvard, such as Engineering Sciences 96 and Engineering Sciences 20. It’s possible that the collaborations with chefs could be incorporated into an existing course, or adapted for senior engineering design projects. Both options seem quite feasible for the spring of 2013, so I’ll keep posting updates. In the meantime, I’d be happy to provide more details about the proposal and answer any questions about the potential implementation.

 

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Adventures in Chocolate

Last week I gave a talk at the MIT Museum about the science of chocolate for their Kitchen Chemistry series, as well as a talk to one of the Harvard undergraduate houses. Thanks to several other deadlines around the same time, I found myself without much time to prepare. I viewed this as something like a 48-hour film challenge: how could I create an hour-long presentation about chocolate in two days? This post describes my development process.

I approached this challenge with my three-part strategy for preparing for other presentations about my research:

  1. Draw cartoons: pictures are far more effective than only words and equations
  2. Do experiments: showing is always better than telling
  3. Eat chocolate: not absolutely necessary, but it makes the process more enjoyable

Continue Reading →

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To paste a tomato: Comparing brands of tomato paste in a pasta sauce

the pasta1 600x278 To paste a tomato: Comparing brands of tomato paste in a pasta sauce

Going to the supermarket always feels a bit bewildering. Which label should I choose?  The generic brand is cheaper, but is it worse?  I really want to go for the colorful label, but is that how they get you?

I wanted an answer!  And so I began a quest into the difference between storebought brands with one of the most treasured and important recipes in my cooking repetoire: Nonna’s pasta sauce (follow link for recipe).  That’s right, my late Nonna was born in Italy and passed down the most delicious pasta sauce in history to my family. It’s similar to a bolognese sauce but different (my grandma was from Lucca, not Bologna), so the only real name for it is Nonna’s pasta sauce.

Continue Reading →

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Moving past the hypothesis: how to pick and choose methods to suit a research question

runkel mcgrath Moving past the hypothesis: how to pick and choose methods to suit a research question

A short while back, Kevin Miklasz made an excellent argument for why the construct of the hypothesis does more to hinder the teaching of science than it helps.

I never thought about why hypotheses were necessary until Kevin pointed out that well, they’re not. But then the question becomes: how can scientists maintain academic rigor without formal hypothesis testing?

I found the answer in a book from 1972. Research on Human Behavior is a little hard to come by nowadays, but its main ideas can be found referenced in all kinds of modern publications. The book offers practical advice for research design based on how much control a researcher has over test subjects. The eight research approaches it offers (charted above) are simple, yet surprisingly inclusive. Continue Reading →

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Tidbits: banishing hypotheses, bespoke chocolates/whiskies, and the science of coffee

science class Tidbits: banishing hypotheses, bespoke chocolates/whiskies, and the science of coffee

image by Sewanee University, from flickr

Although all of us here at Science Fare share a passion for food, our first love will always be science. A few weeks ago Kevin Miklasz, our newest-minted full PhD, traveled to the annual conference of the National Science Teachers Association (NSTA) to give a talk on our work here and his work with Iridescent Learning. Kevin followed up that talk with a post here on why hypotheses should be banished from science education. This week, I’ll be joining in with a post of my own arguing that it’s not the hypothesis that makes research rigorous – it’s the calculated choice of research methods to address a particular question.

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The Goldilocks Guide to Caramels

IMAG3681 600x358 The Goldilocks Guide to Caramels

I’m riding a sugar high right now. You see, I recently discovered that candy is something I can make. Mountains of sugar and rivers of corn syrup can be transformed into something beautiful in my kitchen, and this is a great and awesome power. I am probably not to be trusted with it, but now that I’ve figured it out, there’s no going back. I am making my inner 6-year-old so freaking happy.

IMAG3548 600x358 The Goldilocks Guide to Caramels

These are a few of my favorite things.

There have been a few – okay, a lot – of mistakes along the way. So while I’ve gotten a bit better at making candy, I’ve gotten much better at mitigating confectionary disaster*. One of my favorite tricks involves caramels. One day, I made a whole 9” x 13” pan of them, and once the caramel had set they were just too hard. They shattered rather than bent. I didn’t want to toss them, and I don’t have dental insurance, so on a desperate whim I broke up the sheet of caramel and re-melted it on the stove with a bit of water. This time, it was perfect.

Coming up next, smashing candy with hammers. For Science!

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Questioning the hypothesis: how to improve teaching of the scientific method

thinkingman Questioning the hypothesis: how to improve teaching of the scientific method

flickr user Marco Belluci

In my recent NSTA talk, I advocated a view of the scientific method that did not include hypothesis. What blasphemy! I feel like Galileo speaking out against the Church or something. But let’s face it, hypotheses are stupid and irrelevant for science in our modern age. At best, they are an artifact from the past that has long, long lost its purpose.

Now, I may have ruffled some feathers but I want to point out I’m not the only one - Douglas Llewellyn at NSTA “The Role of Argumentation in Inquiry” session also threw hypotheses in the trash. And this excellent compilation of quotes just published on brainpickings (many from actually scientists!) makes many of the same points I make here. And my favorite view of the scientific method, over at Understandingscience.org, doesn’t use hypotheses either (though they do have some similar ideas in their illustration of science, they don’t use the word “hypothesis”).

So what is my point? To summarize, I argue that there are three main reasons why hypotheses should not be a part of science education:

  1. They aren’t used in all scientific disciplines equally, or at all.
  2. When used, they aren’t a necessary part of the process or the focus (questions are the focus).
  3. Educationally, teaching hypotheses makes an otherwise intuitive process more formal and unfriendly.

Continue Reading →

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Tidbits: cocktails, miracle berry science, and changing aroma into art

cocktail science 600x399 Tidbits: cocktails, miracle berry science, and changing aroma into art

from a recent "cocktail science" event at the exploratorium in San Francisco

For this iteration of Tidbits, we’re featuring Boston Apothecary, a site dedicated to intricately detailed explorations of cocktail science.  Here are some of their recent hits:

Other Cocktail Stuff

News

Geeky

Inspiration

Nutrition

  • Is grass-fed beef really no different from grain-fed? I have my opinions, which I left in comments over at KitchenMyths. What are yours?
  • As long are we’re making A vs. B comparisons, are bananas any better for you than cookies? I’m really perturbed by this infographic and chart. Why? If you look at all foods compared, the major missing element is fat. Fat contributes to feelings of satiety, whereas I suspect the fullness ratings from the other foods tested are due mainly to bulk (for example, watery oranges and apples both sit high on the fullness scale). Take this one with a grain of salt.
  • What “brain food” actually does to your brain, via lifehacker
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ScienceFare at NSTA!

Hey everyone!  I had the pleasure of showing Sciencefare to everyone at the National Science Teachers Association meeting in Indianapolis this past week!  Thanks to all the teachers, educators, and everyone else who attended the session, there were some great comments and questions.  For those of you that didn’t get to see it, I’m posting everything here.

First, the entire presentation is recorded, right here!

Second, since it was hard to see, I wanted to upload my powerpoint presentation separately.  Feel free to use it as you wish, in particular the graphics of the scientific process.  I am including the videos in the powerpoint as separate links below, to cut down on the size of the file.  Also had to take out the pictures of the posters, but you can find those right here on the blog!

NSTA Miklasz presentation

Last, there was some good buzz about the role of hypotheses in science during the presentation.  We’re going to share some thoughts about hypotheses later in the week, so stay posted!

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