Baristas have long known about the importance of water for great espresso. Espresso is 98.3 percent water, so if the mineral content is too high, or even too low, or if the water is high in chlorine, espresso won’t have the proper flavour or aroma. And since brewers operate at high temperatures, scale will build within the boilers and clog or reduce the life of the equipment.
Understanding NSF Ratings
NSF is a not-for-profit corporation founded in 1944 to promote good sanitation. Its main business is to bring together experts in public health, manufacturing, and sanitation from government, industry, academia and the public to develop and administer performance standards for products which have...