röstitöötlus

Röstitöötlus, also known as roasting, is a thermal processing method used in various industries, most notably in food production and metallurgy. In the context of food, roasting involves cooking food, typically in an oven or over a fire, using dry heat. This process causes chemical reactions within the food, such as the Maillard reaction and caramelization, which contribute to browning, flavor development, and aroma. Common foods that undergo roasting include vegetables, meats, and coffee beans. The temperature and duration of roasting significantly influence the final characteristics of the product.

In metallurgy, roasting is a process where a material is heated in the presence of air. This is often done to convert a sulfide ore into a more easily processed oxide. For example, copper sulfide ores are roasted to produce copper oxides, which can then be smelted to extract the metal. Other applications of roasting in metallurgy include the removal of volatile impurities, the desulfurization of minerals, and the preparation of materials for further processing. The specific parameters of roasting in metallurgy are tailored to the ore or material being treated and the desired outcome. The term "roast" can also be used to describe the resulting product of this process.