
The Ig Nobel Prize honors analysis that first makes folks chuckle, then makes them assume. Its thirty fifth award ceremony probably additionally makes folks hungry: ISTA physicist Fabrizio Olmeda and colleagues researched the key of a perfect cacio e pepe pasta sauce. They acquired the favored award for his or her findings on Thursday night in Boston, U.S.
Cacio e pepe is considered one of Italy’s hottest pasta dishes, however even (Italian) scientists typically fail to put together the perfect creamy sauce. Fabrizio Olmeda, a physicist on the Institute of Science and Technology Austria (ISTA), additionally struggled with this—till he had had sufficient of random trial and error and approached the issue scientifically.
Together with colleagues (all Italian) from the Max Planck Institute in Dresden, the University of Padua, and the University of Barcelona, he set out to uncover the key of the perfect sauce in order that it could end up proper each time.
On September 18 in Boston, U.S., the crew acquired the Ig Physics Nobel Prize for his or her groundbreaking and scrumptious perception. The prize honors shocking analysis achievements that first make folks chuckle, then make them assume. It celebrates the bizarre and imaginative so as to spark fascination with science, medication, and know-how.
‘Investigating phenomena that fascinate me’
ISTA postdoc Fabrizio Olmeda selected statistical physics within the subject of complicated programs as his analysis space as a result of it allowed him to apply theoretical physics to a variety of disciplines, from biology to sociology.
“My motivation will always be to investigate phenomena that fascinate me, even if they lie outside my field of expertise, which is the physics of single-cell genomics,” says the newly awarded Ig Nobel Prize winner.
“Despite increasing specialization, I believe that even in my usual field of research, it can be beneficial to take some time to explore something unusual. I think this award reflects this idea, because its motto, ‘First laugh, then think,’ can inspire people to take an interest in science.”

Martin Hetzer, president of ISTA, emphasizes, “A mentor as soon as instructed me: As lengthy as you are having enjoyable, you are doing it proper. The Ig Nobel Prize is a superb tribute to this credo.
“At first, the question of how to prepare the perfect Cacio e Pepe pasta may sound funny. But real curiosity-driven research brings together creativity, perseverance, precision, and fun. And it always leads to discoveries that have the potential to improve our world a little bit—on a large scale with innovations or on a small scale on our plates.”
What’s simmering within the lab? The recipe for scrumptious analysis
And that’s the essence of the study printed in Physics of Fluids and now honored with the award: Simply mixing the same old components—Pecorino cheese, pasta water, pepper, and pasta—typically ends in a lumpy, mozzarella-like sauce.
Why? The starch within the pasta water is meant to assist emulsify and stabilize the sauce, however it’s hardly ever sufficient by itself. When the temperature rises above 65 levels Celsius, the cheese proteins denature and clump collectively, inflicting the combination to break down.
The researchers discovered that the important thing to the perfect sauce is the correct quantity of starch. Simply stir starch powder (2–3% of the cheese mass) into the water till the water turns into clear and thickens. Now combine this gel with the cheese at a low temperature in order that the starch binds with the proteins and prevents lumps. Then season with pepper as ordinary. Mix the pasta with the sauce within the pan and add slightly pasta water if crucial to obtain the appropriate consistency.

Ingredients:
- 4 g starch (potato or cornstarch)
- 40 ml water (to combine the starch)
- 160 g Pecorino Romano
- 240 g pasta (ideally tonnarelli)
- Pasta cooking water
- Black pepper and salt (to style)
More data:
G. Bartolucci et al, Phase habits of Cacio e Pepe sauce, Physics of Fluids (2025). DOI: 10.1063/5.0255841
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Institute of Science and Technology Austria
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2025 Ig Physics Nobel Prize goes to perfect pasta sauce (2025, September 19)
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