How does using very cold water in coffeemaker make the coffee taste better?

Using very cold water in a coffeemaker doesn't actually make the coffee taste better. In fact, it can actually make the coffee taste worse. Here's why:

* Extraction: Cold water extracts coffee grounds much slower than hot water. This can lead to a weak, watery, and under-extracted brew.

* Temperature: The ideal brewing temperature for coffee is around 200-205 degrees Fahrenheit (93-96 degrees Celsius). This temperature allows for the best extraction of the coffee's flavors and aromas. Cold water simply doesn't reach this temperature, resulting in a less flavorful cup.

* Chemistry: The chemical reactions involved in coffee brewing occur at specific temperatures. Using cold water disrupts these reactions, potentially creating a more bitter or unpleasant taste.

Here's what you can do for better-tasting coffee:

* Use filtered water: Impurities in tap water can affect the taste of your coffee. Using filtered water will ensure your coffee is free from chlorine and other contaminants.

* Heat the water: Use fresh, filtered water that has been heated to the ideal brewing temperature.

* Grind fresh beans: Freshly ground beans will result in a more flavorful and aromatic cup of coffee.

* Experiment with brewing methods: Explore different coffee brewing methods like French press, pour over, or Aeropress to find what suits your taste.

In short, using cold water for coffee brewing is generally not recommended. It can lead to a less flavorful and weaker brew. Focus on using hot, filtered water and freshly ground beans for the best possible coffee experience.