18 Oct 2018
The machine is an important factor in making coffee or espresso coffee with a delicious crema, but the one way exhaust valve says that in addition to the machine, the crema formula is also very important.
The golden foam crema on coffee is made up of countless oils, proteins and various sugars. The formula determines the coffee quality, the more grease the coffee formula contains, the more unstable the crema. For this reason, espresso coffee is often mixed with some Robusta coffee beans, because these beans are associated with about 16% high-quality fat. If the coffee cup is unclean and the grease remains on the inside of the cup wall, the crema will quickly subside as the surface tension decreases.
Originally published 18 Oct 2018, updated 18 Oct 2018.
Blog
Building a Stable Degassing System 18 Series Enhances Packaging Quality
21 Aug 2025WOJIN 18 Series degassing valves offer enhanced freshness and packaging professionalism, making them an ideal choice for quality driven brands.
Coffee Bean Storage Container Debut Designed for Freshness Inspired by Aroma
15 Jul 2025The coffee bean storage container is designed with a coffee degassing valve that releases CO₂ while preventing air, moisture, and odors from entering.
Coffee Bean Storage Tubes with valve keeps coffee fresh and aromatic
05 Jun 2025The WOJIN coffee bean storage tubes features a built-in one way degassing valve, preserving coffee aroma and freshness, ideal for display and sampling.
Contact
Address
Unit 3, No.1, West Side of Jielong Street, Jiyue Industrial Zone, Leliu Port, Xinming Village, Leliu Town, Shunde District, Foshan City, Guangdong, P.R. China
E-mail
sales@wojinvalve.com
Phone
0086 138 2555 9141
