About coffee beans

Good coffee starts with good coffee beans. Coffee can be broadly divided into 2 varieties: Arabica and Robusta, both of which account for more than 99% of global coffee production.

Of these, Arabica coffee is of better quality, with a milder, sweeter flavor and higher acid value, due to the coffee's own high sugar and oil wireless vacuum cleaner manufacturer content.

In comparison, Robusta coffee has a thicker, more intense taste and two times the caffeine content of Arabica coffee. This type of coffee is often used to make espresso blends, in order to enrich the coffee with more oils.

About roast level

The roast level of the coffee affects the flavor of the coffee. During the roasting process, the sugars and fats in the coffee are broken down, resulting in a variety of unique flavors.

The less time spent roasting and the lighter the roast, the purer and more acidic the coffee will taste. As the roasting time increases, the coffee darkens in tone and the surface layer becomes greasy. Darker roasted coffees have a lower acidity and a stronger, thicker taste.

About the grind

The level of coarseness of the coffee powder also affects the taste of the coffee. If it is too coarse, the coffee will taste bland; if it is too fine, the coffee will be too bitter.

The grind of the coffee powder depends on the brewing equipment you use, from a finely ground coffee powder for espresso to a coarser ground coffee powder for drip coffee.

About the water to powder ratio

The way the coffee is brewed is the key to the final quality of the coffee. If there is too much water, the coffee will be too light; if there is too little, the coffee will taste too heavy. The water to powder ratio for espresso is usually 1:1-1:3, while for drip coffee it is usually around 1:18.

You should work out the ratio according to the type of coffee, the roast level and the grind level to ensure the perfect balance of flavors.

About water temperature

The higher the water temperature, the faster coffee capsule the extraction rate of the aromas and flavors in the coffee. The ideal water temperature must be between 91-96°C. If the water temperature is too low, the coffee will taste too light; if the water temperature is too high, the taste will be too bitter.

Cold brew coffee takes more than 24 hours to finish brewing because the water temperature is very low, and the coffee produced tastes mild, sweet and has a low acid value.