The Science Behind Baking Loaves in a Wood-Fired Oven |…

Initial Setup: Peel Loading

The process begins with loading the peel with a shaped dough. The peel is essential for transferring the loaf into the hot oven, ensuring that the bottom of the bread gets evenly heated and develops a good crust.

Proper shaping of the dough is crucial as it affects how heat distributes during baking, influencing both the texture and appearance of the final product.

Hearth Heat and Baking Time

Setting the oven temperature and baking time involves understanding transient conduction. As the loaf is placed in the hot oven, heat transfers from the bricks to the dough through conduction, while radiation from the oven walls also contributes to heating.

The Arrhenius equation governs the rate of browning during this process, with higher temperatures accelerating the reaction that leads to a golden crust.

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Maillard Reaction: Crust Browning

Browning occurs due to the Maillard reaction, a series of chemical reactions between amino acids and reducing sugars in the presence of heat. This reaction not only imparts color but also enhances flavor through the formation of new compounds.

The optimal temperature range for this reaction is typically between 140°C and 165°C, with higher temperatures leading to more intense browning.

Crumb Core Heating

While the crust is browning on the outside, the interior of the loaf, known as the crumb core, heats up through conduction and latent heat. The goal is to reach a temperature of 96°C without overcooking the crumb, which can lead to a tough or dry texture.

Achieving an ideal balance between crust browning and crumb heating requires precise control of oven temperature and baking time.

Frequently asked questions

What is the Maillard reaction?

The Maillard reaction is a non-enzymatic browning process that occurs when amino acids react with reducing sugars in the presence of heat, producing complex flavors and colors in baked goods.

Why does the crumb core need to be heated to 96°C?

Heating the crumb core to this temperature ensures proper cooking without overcooking. It activates enzymes that break down starches into simpler sugars, contributing to a soft and moist texture in the bread.

How does radiation contribute to baking?

Radiation from the oven walls provides additional heat transfer to the loaf, ensuring even cooking and helping to achieve a well-browned crust. It complements conduction by providing direct heating from all sides of the loaf.

What happens if the bread is overbaked?

Overbaking can lead to a tough, dry crumb with an overly dark and brittle crust. The extended exposure to high temperatures can cause excessive browning and dehydrate the bread, resulting in a less desirable texture.

Try it live

Everything above runs in your browser — open English Baking Oven Simulator: Peel Loading, Hearth Heat, Maillard Crust and Crumb Core Lab and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.

▶ Open English Baking Oven Simulator: Peel Loading, Hearth Heat, Maillard Crust and Crumb Core Lab simulation