1. turn off the power of the coffee machine and stop working.
2. Wait for the coffee machine to cool for a while until it is completely cooled.
3. Gently rotate the breather cover to remove it from the coffee machine.
4. Use a screwdriver or a small wrench to gently pry it open.
5. After removing the breather cover, you can clean it.
What are the opening hours and addresses of free attractions in Tianjin?