Page 3 - Water Basics Brochure

TOTAL DISSOLVED SOLIDS
WATER HARDNESS
range of meters and readers are available to determine your local TDS level, or your BUNN representative can assist in determining this level. Some level of TDS is desired, depending on the application. However, water with high TDS levels
card thickness of lime can create a 30% energy deficiency in equipment!
can affect taste of beverages and cause deposits in equipment. For best results, water should be within the following recommendations for parts per
lime scale equal in size to an aspirin tablet.
million (ppm) in TDS:
Water hardness is the most commonly mapped water characteristic. The map below is a general guide to countries that actively treat water supplies and publish information on water hardness. Consult your local water authority for specific formula details available in your geographic area.
Overall: Below 500 ppm
Water and coffee:
50-100 ppm or 18 grains of hardness Water and tea:
50-150 ppm or 1-3 grains of hardness
KNOW YOUR WATER
In the course of its journey into your beverage, water attempts to dissolve everything that comes in contact with it, while adding those dissolved items to its own composition. Total Dissolved Solids, or TDS, is an important
factor in your water formula. Essentially, TDS is everything present in water other than pure H2O and suspended solids, such as sediment. A
Water hardness is determined by measuring the mineral content, specifically calcium and magnesium. Hard water has a high mineral content. Some mineral content is preferred to create great tasting beverages. However, high levels of calcium carbonate can cause adverse effects on equipment by leaving lime scale deposits. A credit
To illustrate the meaning of the term “grains of hardness”, imagine the following example: 1 gallon (3.8L) of water containing 5 grains of hardness contains
WATER TREATMENT BY COUNTRIES