The main purpose of evaporation in product preparation is to remove excess water or liquid from a substance to concentrate it, preserve it, or achieve the desired texture or consistency. It helps in creating products that are thicker, longer-lasting, or easier to store and transport. For example, in making condensed milk, evaporation removes water to make the milk thick and sweet.If evaporation did not occur, the products would stay watery or diluted, which could affect their taste, texture, shelf life, and overall quality. Without evaporation:The product might spoil quickly because of the excess moisture.It would be less concentrated, possibly altering its effectiveness or flavor.The final product might not reach the required form, such as powder, paste, or syrup.