What is kettling in coffee brewing?

Kettling refers specifically to the practice of heating water to the correct temperature for brewing coffee. This is an essential step in the brewing process, as water temperature directly affects the extraction of flavors from the coffee grounds. Ideally, water should be heated to a temperature range typically between 195°F to 205°F (90°C to 96°C) for optimal flavor extraction.

If the water is too cold, it may result in under-extraction, leading to a weak and sour taste. Conversely, if the water is too hot, it can cause over-extraction, resulting in a bitter flavor profile. Thus, proper kettling is crucial in achieving a balanced and flavorful cup of coffee, making it a key component in the brewing process.