The Zwilling Enfinigy Milk Frother froths and stirs hot or cold milk. The 4-minute automatic program creates creamy, micro-bubble foam, even with plant-based milks. The stainless steel frothing cup includes interior capacity markings to help prevent overflow. Use it to make hot or cold specialty coffee drinks and hot chocolate. 6.75-ounce capacity for hot milk, and 13.5-ounce capacity for cold milk.