Espresso Filtration

The difference between the Everpure ESO and Claris systems

• The ESO and Claris have many similarities and provide excellent scale prevention for equipment. Both feature an ion exchange softening process that targets carbonate hardness and reduces alkalinity, disrupting the scaling process. In addition, both have integrated filter membranes for removing particulate, along with carbon for reducing chemicals such as chlorine and improving taste and odor for beverages.

• There are some differences, the key one being how blending is handled. The blending of filtered water with the softened water within the systems provides two benefits: the minerals in the filtered water act as a buffer that prevents the water from becoming too acidic, and it also provides minerals for taste. In the case of coffee and espresso, too little mineral would lead to underextraction of the coffee grounds and weak flavor and aroma. The ESO has a fixed blend. Typically about 20% of the filtered water is blended with the softened water. The Claris on the other hand has an adjustable blend. This allows customization of how much mineral you want in the product water, giving you more control of the final beverage.

• Both systems are excellent solutions for preventing scale and providing great tasting coffees and espressos. Which one you use depends on how much flexibility you want on the water recipe.