Water temperature has a significant impact on the taste of your coffee. Keeping water at a stable temperature will give you the best results. This is known as thermal stability, an essential part of manual brewing.
Brewing coffee at too high a temperature can result in over-extracted coffee, which tastes bitter and hollow. If your water temperature is too low, your coffee will taste sour and astringent.
Any significant temperature fluctuations can have an impact on flavor ( 35°F either way can make a difference). Consistency helps to bring out the best flavors in coffee so keep the water at a temperature between 195°F and 205°F if you want to make a good cup of coffee.
Maintaining thermal stability during manual brewing might seem easy enough with the aid of a temperature-controlled kettle. But in reality, it's more challenging than you might think since the material of your brewer greatly affects the thermal stability of your coffee.
Preheating your brewer will help you avoid losing heat from your brew water. Ceramic and plastic materials tend to require more preheating than steel or glass, as they take longer to heat. This prevents them from absorbing too much heat during the initial phases of the extraction process.
High-quality brewers made from durable materials make it easier for you to achieve a consistent, stable temperature when preparing filtered coffee.
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