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
WOJIN Participates in HOTELEX 2026
30 Mar 2026WOJIN showcased the degassing valves and valve applicator at HOTELEX 2026, connecting with global customers and gaining insights into coffee packaging needs.
Starting 2026 with a Clear Plan
27 Feb 2026After the Spring Festival holiday, we returned to work with a company-wide meeting to review last year’s performance and set clear and practical goals for 2026.
Packaging That Needs a One-Way Degassing Valve
29 Jan 2026One way degassing valves release trapped gas, block outside air, suit gas-producing sealed products and prevent package swelling or bursting to preserve quality.
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
