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The Maillard reaction is the browning chemistry that helps turn plain heat into the deep smell of toast, roasted coffee, onions and seared food.

American Chemical Society

ScienceFood

Why it matters

The idea in context

Heat does not only soften food; it rearranges it. When sugars and amino acids react, they can produce hundreds of aroma and flavour compounds on the browned surface. The crust of bread or the edge of an onion is a record of time, temperature and molecular chance.

Türkçe

Aynı kart, başka bir dilde.

Ekmek kabuğunun, kavrulmuş kahvenin ve kızaran soğanın kokusunda Maillard tepkimesi vardır: Isı, şekeri ve amino asitleri yeni aromalara çevirir.

Tavada ya da fırında olup biten şey yalnızca pişme değildir; yüzeyde küçük bir kimya sahnesi kurulur. Şekerler ve amino asitler ısıyla karşılaşınca yüzlerce koku ve tat bileşiği doğabilir. Bu yüzden kızarmış kenar, çiğ malzemenin kendisinden daha derin, daha koyu ve daha iştah açıcı gelir.

Source trail

Read beyond the card.

American Chemical Society describes the Maillard reaction as the browning reaction behind the complex flavour and aroma of foods such as hot toast and cooked food. Source: https://www.acs.org/pressroom/reactions/library/maillard-the-most-delicious-chemical-reaction-in-the-world.html ; audited 2026-07-07.

Background reading: Maillard reactionAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
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