Hello! I completely understand how frustrating it is to deal with curdled coffee when you are rushing to get out the door for work.
Oat milk curdles in coffee primarily due to a combination of acidity, heat, and the natural proteins found in oats. When cold oat milk hits hot, acidic coffee, the proteins denature and clump together. To prevent this, you can try a few simple steps. First, look for a barista-edition oat milk, which contains added stabilizers and oils designed to resist curdling. Second, you can let your coffee cool for a minute before pouring the milk, or gently warm the oat milk slightly beforehand so the temperature shock is less severe.
