Study on the acidity of medium and deep roasted coffee beans

introduction

Coffee is one of the most popular coffee house drinks in the world, and roasting is one of the important links that determine the flavor of coffee. Different degrees of roasting will produce coffee beans with different tastes and characteristics. This article will focus on the acidity of medium-deep roasted coffee beans and analyze its impact on taste and flavor.

Medium-dark roast and acidity

Medium-dark roasting is a degree between light roasting and dark roasting, and usually forms more obvious oil on the surface of the beans. Compared with light roasting, medium-dark roasting is more balanced and has more complexity and sweetness. However, in this process, the internal structure of the coffee beans changes, including the degradation of acidic substances.

Reduce acid content

When roasting coffee beans at medium to dark temperatures, high temperatures cause chemical reactions inside the beans. One of the important changes is a reduction in the acid content. This is because the acid is broken down or converted into other compounds at high temperatures. Therefore, coffee beans roasted at medium to dark temperatures are usually lower in acid than coffee beans roasted at light temperatures.

Taste and flavor characteristics

Medium-dark roasted coffee beans have lower acidity, which can be an advantage for some people. Low acidity makes the coffee more balanced and mellow, reduces bitterness, and increases sweetness. This taste is suitable for those who like a strong, rounded taste.

However, reducing acidity also means losing some complexity and freshness. Light roasted coffee usually has bright, fruity characteristics, while medium-dark roasting tends to have flavors such as chocolate and nuts. So if you like coffee with obvious fruity or floral aromas, you may feel that some flavor elements are lost during the medium-dark roasting process.

Choose the one that suits your taste

It is very important to choose coffee that suits your taste. If you like coffee with less acidity, rich flavor, and rich sweetness, medium-dark roast may be your first choice. But if you prefer bright, fresh and floral coffee, then light or medium roast may be more suitable for you.

In addition, coffee beans from different origins and varieties will also affect the taste after roasting. Therefore, these factors should also be taken into account when choosing medium and deep roasting.

in conclusion

Medium roasting is a roasting method between light roasting and dark roasting. It reduces the acid content and gives the coffee beans more complexity and sweetness. However, this also means losing some freshness and flavor elements.

When choosing coffee that suits your taste, you need to consider personal preferences as well as factors such as different origins and varieties. I hope this article can help readers better understand the impact of medium-dark roasting on acidity, taste and flavor.