How Does a Coffee Machine Froth Milk? Unveiling the Secrets of the Air Pump System

In top-tier cafes filled with the aroma of coffee, a perfect cappuccino is inseparable from silk-like, fine-textured milk foam. The quality of the foam directly affects the drink's taste and customer experience. The formation of such professional-grade milk foam hinges on the air pump system in the coffee machine's milk circuit. Like an invisible barista, it precisely controls the mixing ratio of air and milk to create a stable and uniform micro-bubble structure.

This process requires precise control of three elements: air flow determines foam density, pressure intensity influences fineness, and stability affects longevity.




1. Precision Airflow Control

The cooperative control between TOPSFLO's air pump and software captures user customization needs, enabling targeted adjustment of air volume entering the system. Users can precisely achieve diverse foam textures ranging from fluffy to dense.

For instance, the TM40 series combines a high flow rate of 12 L/min with 260 kPa pressure. On the operation interface, users can set foam parameters (e.g., "thick foam" or "light foam"), and the system automatically matches pressure and duration. The pump then delivers the required pressure to penetrate milk protein molecular chains, enabling rapid foaming and forming a uniform bubble network, ensuring consistent foam thickness in every cup.

2. Ultra-Quiet, Long-Life Design

In cafes, supermarkets, and other environments, 72% of consumers believe that ambient noise impacts their coffee experience. Our TM40 series utilizes patented vibration-damping technology and a filter. This cushioned, vibration-damping structure effectively reduces mechanical wear and tear, extending the life of key components.

The pump also operates with exceptionally low noise, minimizing disruption to the customer experience. Food-grade certified materials and an optimized structural design prevent odors from contaminating the milk's natural flavor, ensuring a long lifespan and low maintenance. Suitable for high-frequency commercial coffee machine use, it ensures stable cup delivery efficiency. Its 3,000-hour lifespan meets the three-year usage requirement of an average of 300 cups per day.



3. Efficient Pressure Supply

The TM40 series air pump delivers stable, high-pressure air supply while maintaining low energy consumption. Its rapid response allows for efficient, simultaneous milk frothing and coffee extraction. Even during peak morning rush hours, facing the onslaught of orders for dozens of cups, it maintains perfect milk froth reproduction for each cup, guaranteeing efficient and high-quality delivery.



TOPSFLO air pumps utilize technology to recreate the traditional Italian barista's skill of "determining air volume by feel," allowing for consistent quality and individual expression. In an era of efficiency, these air pumps, hidden within coffee machines, use invisible precision calculations to ensure the warmth and expertise of every cup.