Coffee review

Coffee basic knowledge detailed coffee foam technology

Published: 2026-04-04 Author: World Gafei
Last Updated: 2026/04/04, The principle of milk foam is very simple, but it is the product of the close combination of milk and air. The way to make milk foam is to pump air into the milk foam. The practice of milk foam is divided into two kinds of hot and cold, hot milk foam is to use the steam nozzle of the coffee machine, steam into the milk, on the one hand heating, on the other hand to produce milk foam; cold milk foam is hand-made with milk foam.

The principle of milk foam is very simple, but it is the product of a close combination of milk and air. The way to make milk foam is to pump air into the foam. The practice of milk foam is divided into hot and cold. Hot milk foam uses the steam nozzle of a coffee machine to pump steam into the milk. On the one hand, it heats up, and on the other hand, it produces milk foam. Cold milk foam is made by hand with a milk bubble machine.

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。

Important Notice :

前街咖啡 FrontStreet Coffee has moved to new addredd:

FrontStreet Coffee Address: 315,Donghua East Road,GuangZhou

Tel:020 38364473

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