Water Filters

Water in many areas is relatively hard, and limescale deposits are the main cause of premature wear in coffee machines and ice generators. Regular water filtration reduces this problem, ensures stable equipment operation and lowers maintenance costs in the long term. A water filter is a small investment that significantly extends equipment service life and reduces the frequency of descaling.

The importance of water filters for coffee machines

A water filter for coffee machines serves a dual function — it improves coffee taste and protects the equipment. Taste improvement occurs by removing chlorine and other volatile substances that can give coffee an undesirable taste and odour. The protective function is evident in reducing limescale build-up on the heating element, boiler and inner pipe walls.

Professional coffee machine filters typically work with ion-exchange resins that bind calcium and magnesium ions. The filter must be replaced regularly — usually every 3–6 months or after filtering a specific volume of water. Delayed filter replacement reduces filter effectiveness and allows more limescale to enter the equipment.

Water filters for ice generators

A water filter for ice generators ensures clearer, cleaner ice and reduces limescale build-up on freezing plates and the water distribution system. Regular filter replacement is an essential part of preventive maintenance for ice generators. Limescale deposits in an ice generator can affect the ice crystal formation process and reduce ice clarity and hardness.

Water filters for hot water dispensers and other equipment

Hot water dispensers and steam equipment use large amounts of water at high temperatures, which accelerates limescale build-up. A water filter reduces limescale deposits, extends equipment service life and reduces the frequency of descaling. Soda machines and beverage stations also benefit from filtered water — cleaner water ensures better CO2 absorption in carbonated drinks and improves their taste.

Filter selection and replacement

Filter selection depends on the equipment type, water hardness and flow rate. Universal filters are a more economical solution but must be checked for compatibility with the specific equipment.

Planning the correct filter replacement frequency saves money in the long term.

Measuring water quality

Before purchasing a water filter, it is advisable to measure local water hardness with a TDS meter or obtain a water analysis from the water supply company. Water hardness varies in different cities from 100 mg/l CaCO3 (soft) to 300 mg/l CaCO3 (very hard). Hard water requires more frequent filter replacement and more intensive descaling than soft water.

Filtration methods and technologies

Ion-exchange filters are the most common for professional equipment — they soften water by replacing calcium and magnesium ions. Activated carbon filters additionally remove chlorine, organic compounds and odours, improving beverage taste. Combined models integrate both technologies in one filter element, providing both softening and taste improvement.

Filter installation requirements

Water filter installation is usually a simple procedure that can take 15–30 minutes. The filter housing should be placed on the water supply line before the equipment, with easy access for replacement. After installing a new filter, it is advisable to flush 2–3 litres of water to activate the filter and rinse out any residues from the manufacturing process.

Cost analysis — filter vs. damage costs

Regular water filter replacement costs 30–100 EUR per year depending on the model and usage intensity. Replacing a coffee machine heating element due to limescale damage can cost 200–800 EUR, not including equipment downtime. Filter costs are minimal compared to potential damage costs — a filter is one of the most cost-effective equipment protection investments.

Water filters vs. descalers

A water filter and descaling agent are complementary, not alternative, methods for equipment protection. The filter reduces the rate of limescale build-up and improves taste but does not completely prevent limescale formation.

Filtered water and beverage quality

The taste improvement from filtered water is particularly noticeable in areas with chlorinated or highly mineralised tap water. Coffee, tea and juices prepared with filtered water taste cleaner and more aromatic. Customers in cafés and restaurants, who are familiar with the taste of quality coffee, can detect the difference between filtered and unfiltered water in coffee.

Regular replacement planning and reminders

Filter replacement should be scheduled in the calendar — every quarter or six months depending on the manufacturer’s recommendations and water hardness. Some filters are equipped with an indicator for replacement signals, while others require visual inspection. Timely replacement ensures stable filtration effectiveness — an old filter can become saturated and inefficient at softening water.

Why choose BHS?

BHS – Baltic HoReCa Solutions supplies professional equipment for restaurants, cafés, hotels and canteens: more than 20,000 products from many manufacturers. Our specialists help you choose the right equipment and spare parts for your kitchen or bar.

Delivery

We deliver across the European Union. Delivery time and cost depend on the order volume and destination — contact the BHS team for an exact price and lead time.