one-way valve

How Does Sunbeam Coffee Machine Work?

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A sunbeam coffee maker is basically an automatic pour-over device, so the concept behind it is simple. When you plug it in and press the Start button, it heats the water in its reservoir to the boiling point, then it sprays the boiling water over the ground coffee in the filter strainer just below the … Read more

How Do You Use A Coffee Bag In A Coffee Maker?

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Not just a “smelling hole”, that little belly button is actually a one-way valve, which allows you to squeeze air out without letting any air in , and it is critical to the shelf life of the coffee and the preservation of the bag itself. THE SCIENCE: When coffee is fresh roasted, it releases carbon … Read more