Understand the choice
Record the espresso dose and beverage yield before adding milk. Measure milk rather than relying only on cup size, and use clean refrigerated ingredients. Plant-based drinks behave differently according to their formulation.
Put it into practice
Follow the machine’s steam-wand instructions, purge and wipe safely, and avoid reusing leftover warmed milk. A cost calculation is simply an ingredient budget, not a food-safety procedure.
Keep the conversation useful
Share your actual recipe or experience, identify the coffee or equipment and explain what changed. A clear question with measurements makes the discussion easier for others to answer.