What is dextrinisation?

Dextrinisation refers to the process in which starch molecules are broken down into dextrins when they are heated. This typically occurs when dry heat is applied to starchy foods, such as when baking bread or roasting potatoes. During this process, the starch granules swell, burst, and undergo a chemical transformation that results in the formation of shorter-chain carbohydrates known as dextrins. This not only contributes to browning and flavor development in the food but also affects its texture, making it more palatable. Additionally, dextrinisation plays a significant role in cooking processes such as toasting bread, where the Maillard reaction can also occur, enhancing flavors and aromas.

The other choices do not accurately describe dextrinisation: boiling food in water pertains to gelatinisation, the addition of sugars relates to sweeteners and flavor enhancement, and freezing techniques are unrelated to starch breakdown.