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How Flaky Are You? The Science of Pie Crust

During the holiday season, pies are front-and-center on the dessert menu. Become the pie-baking champion in your family with this tasty experiment.


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Turning Family Baking into Family Science

In the "Perfecting Pastries" kitchen science project, students explore the role of fats in piecrust making. Different fats (and fats at different temperatures) can make a big difference in the texture of the crust. But what about gluten? If your family festivities involve gluten-free cooking, thinking about concepts in the "Great Globs of Gluten! Which Wheat Flour Has The Most?" science project can be a great addition to your piecrust testing. If you keep the fats the same and vary your flours to make a gluten-free version, what kinds of differences will you see in your crusts?

Pumpkin, strawberry, or all-American apple—do you have a favorite kind of pie? While pie consumers tend to think about the delicious variety of fillings there are to eat, many pie bakers spend a lot of time perfecting their crusts. Some people are so intimidated by the idea of making a tasty crust from scratch that they prefer to buy them, but with a bit of hands-on experimentation in the kitchen, you may find your own perfect technique for great homemade crust.

Getting to Golden Perfection

The ideal piecrust is light and flaky, rather than tough and chewy. But what is the best way to create a perfectly light and flaky crust? Usually, piecrusts are made with just flour, fat, salt, and a little bit of water. You mix the fat into the flour first, which coats the flour particles. Then, when you add the water, the resulting dough is slightly crumbly, rather than stretchy like pizza dough.

With so few ingredients, how can piecrusts vary in texture? For starters, you can use different types of fat—butter, vegetable shortening, or even lard. Different fats yield different results. Another variable is the temperature of the ingredients. Should the fat be room temperature when you mix it in, or should it be ice-cold? Chances are, the pie baker in your family has an opinion!


Grab Your Chef Hat and Lab Coat

In the "Perfecting Pastries: The Role of Fats in Making a Delicious Pastry" Project Idea, you take the lead in your own piecrust test kitchen! In this project, you will experiment with the type and temperature of the fats used in your piecrust recipe. Following the experimental procedure in the project, you you will make four different crusts, being careful to keep your bake time and oven temperature constant for all of the crusts so that you can really see the difference the variables you are testing make in how the crusts come out.

When your crusts are ready, gather friends and family to see how the crust crumbles! Which recipe creates a crust with the best texture and flavor? Everyone will have the chance to see and taste your crusts and voice their opinions.


Put Your Results to Good Use!

Once you have your winning recipe, you can prepare one last piecrust and fill it with something delicious! Success has never been sweeter!

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Your Science!
What will you explore for your science project this year? What is your favorite classroom science activity? Email us a short (one to three sentences) summary of your science project or teaching tip. You might end up featured in an upcoming Science Buddies newsletter!



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