There is something about drip coffee from a cafe that appears to hit you harder than your own cup of joe at home.
Many types of coffee are available, but essentially there are only two elements in coffee: beans and water. So, the water you use to brew your coffee can have a significant impact.
According to Serious Eats, professional filtration methods range from managing taste & aroma to executing reverse osmosis across the drink, which are not available at home.
Coffee Mag, a Canadian publication, indicates that minerals and alkalinity can eliminate the inherent flavor notes in coffee beans.
Depending on its mineral concentration, water can eliminate coffee's acidity. pH can turn coffee harsh, neutral, or sour instead of creamy and fresh.
During brewing, water releases coffee-tasting chemicals from the beans. Unfiltered water contains chloramines, chlorine, and other flavors that affect coffee.
If you're a coffee enthusiast, start with distilled water and then add minerals to suit your own tastes.
Alternatively, you might start by using filtered water to see how it affects your cup of coffee. Your pioneering efforts will be appreciated in future morning cuppas!