Take the 2-minute tour ×
Seasoned Advice is a question and answer site for professional and amateur chefs. It's 100% free, no registration required.

In brewing coffee, is it important to use filtered water? If so, why?

Is there a particular type of filter that is most effective for water to be used in brewing coffee?

share|improve this question
    
This is probably too generic to be an Answer, but - it's a matter of taste. What @charlotte says is probably right, but very subtle. OTOH, if you taste the difference when you don't filter your drinking water ... –  hunter2 Sep 11 '13 at 9:01
    
    
Using filtered water is also doubly important when using espresso machines, as hard water causes calcification inside the machine. –  leon Sep 12 '13 at 22:15

2 Answers 2

There is variable here. It depends on what water your filtering and what filter you're using. Depending on your location the mineral density of water will vary. Hard water being rich in mineral and soft water being poor. The harder the water the weaker your extraction will be. Extremely soft water like distilled or reverse osmosis water will leave you with a over extracted cup of coffee.

In general it is good practice to use a carbon filter system which removes impurities but retains minerals. However if you believe your water is too hard and you're under-extracting, try using a home filtering system that removes (some) minerals.

share|improve this answer

In addition to Charlotte's cook answer I'd note that heating / boiling water removes most of the common volatile compounds such as chlorine (not minerals) that may affect taste. So your boiled water would be more neutral in flavour than the same water straight from the tap.

So depending on your water supply, there is often less need to filter for making coffee than cold beverages.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.