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Ground coffee is a product made from raw coffee beans that have been processed through roasting to create a distinctive flavor, then ground finely for convenience in brewing. This is a popular product in households and coffee shops. Ground coffee can be classified into various types depending on the roasting level and the type of coffee beans used.
2. Popular types of roasted coffee
Roasted coffee comes in many different varieties depending on the roasting level and processing style, each with its own distinct characteristics and flavors:
- Light Roast: Coffee beans are roasted at low temperatures, usually around 180°C to 205°C. This coffee retains the natural flavor of the beans, with a light acidity, refreshing aroma, and a light sweetness. Light roast coffee often has a higher caffeine content than dark roast coffee and is very suitable for those who love coffee with a refreshing, easy-to-drink taste.
- Medium Roast: This is a popular type of coffee and is favored by most people. Coffee beans are roasted at a temperature of around 210°C to 220°C, providing a balance between sourness, bitterness, and sweetness. Medium roast coffee has an easy-to-drink taste, suitable for both beginners and those who love coffee with an average flavor.
- Dark Roast: Coffee beans are roasted at high temperatures, from 225°C to 240°C, bringing out a strong bitterness, smoky flavor and sometimes a hint of caramel or chocolate. Dark roasts may not retain much of the original acidity of the coffee beans, but instead are a rich, powerful combination with a distinctive aroma. This is the ideal choice for those who love strong, bold coffee.
3. How to make roasted ground coffee
Roasted ground coffee can be made using many different methods, each method brings a different experience and flavor. Here are some popular brewing methods:
- Phin brewing (Phin coffee): This is the traditional Vietnamese coffee brewing method, using a simple coffee filter. The coffee is finely ground and put into the filter, then hot water is poured over and slowly flows through the coffee powder into the cup. The coffee filter produces a rich, delicious cup of coffee.
- Espresso brewing: Espresso is one of the modern coffee brewing methods, using an espresso machine. The roasted ground coffee is compressed and put into the machine for extraction under high pressure. The espresso cup has a strong flavor and a layer of smooth golden crema on top.
- Drip coffee: This method uses a filter or filter, where hot water flows through the coffee grounds, slowly extracting the flavor from the beans. This is a simple and convenient way to make coffee.
- French Press: Ground coffee is placed in a French Press and hot water is poured in. After a few minutes of extraction, the user presses down on the filter to separate the coffee grounds. This method produces a full-bodied coffee, often with a smooth and full-bodied taste.
- Cold Brew: Ground coffee is steeped in cold water for 12 to 24 hours. This method produces a cool, naturally sweet and less acidic cup of coffee.
4. Benefits and effects of roasted coffee
Roasted coffee not only brings delicious flavor but also has some health benefits:
- Increase energy: Caffeine in coffee helps increase alertness and energy, reduces fatigue and helps improve concentration.
- Improve cardiovascular health: Some studies show that coffee can help reduce the risk of cardiovascular disease thanks to its antioxidants and ability to improve blood circulation.
- Good for the brain: Caffeine has the effect of stimulating the central nervous system, helping to improve concentration and improve short-term memory.
Reduce the risk of diabetes: Some studies have shown that drinking coffee in moderation can help reduce the risk of type 2 diabetes thanks to its ability to regulate blood sugar levels.