Why is it important to keep milk fresh when making espresso drinks?

Keeping milk fresh is vital for several reasons, with food safety and quality being paramount. Fresh milk helps prevent the growth of harmful bacteria, which can lead to foodborne illnesses. When milk is spoiled or begins to go sour, not only does it pose a health risk, but it can also negatively affect the taste and quality of the espresso drinks being prepared. High-quality, fresh milk contributes to the overall experience of the drink, ensuring that it has the creamy richness and sweetness that enhances the espresso. If milk is not fresh, it can alter the flavor profile of the drink, potentially overwhelming or clashing with the flavors of the coffee.

While flavor, preparation time, and texture are important aspects of making espresso drinks, maintaining freshness is foundational to ensuring both safety and a high-quality product.