Espresso, coffee concentrate or drip coffee
Espresso gives the strongest base for milk drinks. Concentrate and drip take less effort.
Steam wands, automatic milk systems and separate frother bundles
A steam wand gives the best texture and the steepest learning curve. Automatic systems trade control for convenience. An attached whisk is simplest but does not heat.
Milk heating, cold foam and plant-based milk
Check whether the frother heats milk. Cold foam uses chilled milk, since cold modes do not refrigerate. Plant milks froth differently by brand.
Pods, grounds and whole beans
Pods are fastest, grounds are flexible, and whole beans give the freshest cup but add grinder upkeep.
Cup sizes, water capacity and counter space
A larger tank means fewer refills.
Cleaning the milk system and ongoing costs
Dishwasher-safe removable parts ease the routine. Filters and pods are the ongoing costs.