Have tried to face this situation, you spent a lot of thought to study things, and ultimately chose coffee beans, it brought home, grinding, filling ... However, the final rushed out coffee is not delicious. Then you will give up this bean, and change another one? Perhaps you are wrong with your coffee beans, one way valve to give you the advice is to change the "water".
Water is an important part of a cup of coffee, in Espresso the water accounted for about 90% of the proportion, in the filter-type coffee accounted for 98.5%. If the water used to brew coffee is poor at first, the coffee will never be delicious. Under normal circumstances, as long as the use of activated carbon containing water filter, you can effectively remove the miscellaneous taste, but may not have the best water to brew coffee.
In the process of boiling, the water plays the role of solvent, responsible for extracting the flavor ingredients within the coffee powder, because the water hardness and mineral content will affect the extraction efficiency of coffee, so the water quality is very important.
The hardness of water on the interaction between hot water and coffee powder has a great impact, the ideal water contains a small amount of hardness, and the relative content of very low minerals. Want to know the water quality of your area, you can seek the assistance of the company, most of the water treatment equipment companies must be published on the network of their water quality data.
If you live in the water softness of the region, just add the water filter can improve the taste of water. If you live in harder areas of water quality, the best solution is to buy bottled drinking water to brew coffee. In order to drink the best flavor of coffee, it is worth in the "water" up and down a lot of effort!
One way valve believes that drinking coffee should be like tasting wine, first smell the aroma, and then try a small bite, that you can taste the essence of it.