How much milk does a barista waste for each milk-based drink made?

In a typical café setting, a barista may waste around 80ml of milk for each milk-based drink due to various factors. This waste can occur during the steaming and frothing process, where milk expands and some can spill over from the pitcher or foam can be left behind in the steaming wand. Additionally, the handling of milk can result in some portions being discarded if they do not meet quality standards for a drink.

Understanding the standard waste level of 80ml helps baristas better manage their milk inventory and cost. By being aware of this waste, baristas can aim to minimize it by adjusting their techniques, such as using the right pouring method or ensuring their equipment is clean and functioning properly.