1. Introduction
The BWT Bestmin Premium M is a high-performance water filter system designed to optimize low-mineral raw water for various applications, particularly for coffee and tea preparation. This modular multi-stage filter effectively reduces undesirable substances such as particles, flavorings, and odors, including chlorine. It enriches the water with valuable magnesium, enhancing the sensory profile of beverages.
This system is suitable for use in areas with soft water and in conjunction with reverse osmosis systems. It ensures a consistent water quality, making it ideal for coffee machines, espresso machines, and vending machines worldwide.

Image 1.1 : Terminéview of the BWT Bestmin Premium M filter system, highlighting its mineralization capabilities for catering applications.
2. Configuration et installation
Proper installation is crucial for the optimal performance of your BWT Bestmin Premium M filter system. The system consists of a filter cartridge and a BWT besthead filter head (sold separately or as part of a set).
2.1. Components Required
- BWT Bestmin Premium M filter cartridge (Model: FS24M10A00)
- BWT besthead filter head (e.g., FS00Z20A00 or FS00Z39A00)
- Appropriate connection hoses and fittings (3/8" x 3/8" connection recommended)
2.2. Directives d'installation
- Positionnement : The filter system requires installation verticale uniquement. Ensure sufficient space for maintenance and filter changes.
- Arrivée d'eau : Connect the water inlet to the designated port on the BWT besthead filter head.
- Outlet to Appliance: Connect the outlet from the filter head to your coffee machine, espresso machine, or vending machine.
- Clapets anti-retour: The filter head includes integrated check valves to prevent backflow and uncontrolled water discharge.
- Conditions de fonctionnement : Ensure your water supply meets the following conditions:
- Input pressure: 2-8 bar
- Water temperature: 4-30 °C
- Température ambiante : 4-40 °C

Image 2.1: Technical data and a diagram illustrating the standalone installation of the BWT Bestmin Premium M filter with a coffee machine.
3. Principe de fonctionnement
The BWT Bestmin Premium M filter utilizes a multi-stage filtration process to deliver optimized water quality:
- Particle Pre-filter: Separates coarse particles such as sand and rust from the raw water.
- Charbon actif : Eliminates organic substances, chlorine, foreign odors, and tastes.
- Mineralization Stage: Releases essential minerals, particularly magnesium (Mg²⁺), into the water, acting as a flavor carrier.
- Particle Fine Filter: Separates fine particles and suspended matter, ensuring clear water.
This comprehensive process ensures that the water is perfectly mineralized for brewing coffee and other hot beverages, enhancing their taste and aroma.

Image 3.1: Detailed diagram illustrating the four-stage filtration process within the BWT Bestmin Premium filter cartridge and besthead filter head.

Image 3.2: The importance of water quality for hot beverages, emphasizing the role of the filter in enhancing taste.

Image 3.3: Comparison of BWT remineralizing products and an integral setup diagram for the filter system.
4. Entretien
Regular maintenance, primarily filter cartridge replacement, is essential to ensure continuous high-quality water and optimal system performance.
4.1. Remplacement de la cartouche filtrante
The BWT Bestmin Premium M filter cartridge should be replaced after 6 or 12 months of use, depending on water quality and usage volume. Refer to the technical data for specific recommendations. Always use genuine BWT replacement cartridges.
- Coupez l'alimentation en eau du système de filtration.
- Depressurize the system if necessary.
- Unscrew the old filter cartridge from the BWT besthead filter head.
- Insert the new filter cartridge, ensuring it is securely screwed into place.
- Ouvrez lentement l’alimentation en eau et vérifiez les fuites.
- Flush the new filter cartridge according to the instructions provided with the replacement filter.
5. Dépannage
If you experience issues with your BWT Bestmin Premium M filter system, consider the following:
- Débit d'eau réduit : Check if the filter cartridge needs replacement. A clogged filter can restrict water flow.
- Goût ou odeur inhabituels : This indicates that the filter media may be exhausted. Replace the filter cartridge.
- Fuites : Ensure all connections are tight and that the filter cartridge is correctly seated in the filter head. Check O-rings for damage.
- Aucun débit d'eau : Verify that the water supply is turned on and that there are no blockages in the lines.
For persistent problems not resolved by these steps, please contact BWT customer support.
6. Spécifications
| Fonctionnalité | Spécification |
|---|---|
| Numéro de modèle | FS24M10A00 |
| Taille du filtre | M |
| Capacité typique | 10,000 litres |
| Total Height (with handle) | 500 mm |
| Height (without handle) | 475 mm |
| Connection Height | 425 mm |
| Diameter Filter Cartridge | 130 mm |
| Poids (sec/humide) | 4.1 kg / 5.6 kg |
| Matériel | Fibre de carbone |
| Pression d'entrée | 2-8 bars |
| Température de l'eau | 4-30 °C |
| Température ambiante | 4-40 °C |
| Avantages du produit | Removes impurities and improves water quality by adding minerals |
7. Garantie et assistance
For information regarding product warranty, please refer to the documentation provided at the time of purchase or visit the official BWT website. BWT stands behind the quality of its products.
7.1. Assistance clientèle
If you require technical assistance, have questions about installation, operation, or maintenance, please contact BWT customer support. Contact details can typically be found on the BWT websur votre site ou sur l'emballage de votre produit.
Vous pouvez également visiter le BWT Store on Amazon Pour plus d'informations et de ressources sur les produits.