Blog - Coldstream filtration

Why can the ceramic in Coldstream FTO+ filters come loose?
Why can the ceramic in Coldstream FTO+ filters come loose? The ceramic in Coldstream FTO+ filters can sometimes become detached from its base. Several factors can explain this problem: insufficient bonding during manufacturing, the fineness of the ceramic, the weight of the filter when filled with water and the shocks caused during handling of the upper tank. Sometimes insufficient bonding on the base The ceramic is fixed to its base using a bonding and sealing material. During manufacturing, if the operator does not apply enough glue, if it is poorly... Read more...
Why can water filtered with a Coldstream FTO+ filter sometimes taste like dust?
It may happen, although rarely, that some users notice a slight taste of dust in water filtered with Coldstream FTO+ filters, especially during the very first uses. What is the cause of this unusual taste? According to Coldstream, this isolated phenomenon is linked to a specific stage of the manufacturing process: the passage through a sieve and the compaction of the activated carbon. If this phase is not perfectly homogeneous, it can result in the release of fine particles perceptible to the taste, such as a slight earthy or mineral... Read more...
Why can filtered water sometimes have an earthy taste with FTO+ filters?
In rare cases, water filtered with an FTO+ filter may have an earthy taste. This phenomenon is linked to a residual presence of activated carbon dust. According to the manufacturer Coldstream: “It sometimes happens with the carbon if the sieve failed to do a good job by not separating the carbon dust fully. Not dangerous but annoying for all involved.” 👉 It is not a health hazard, but it remains unpleasant. Since May 2025, Coldstream has improved its manufacturing process so that this type of incident only occurs exceptionally. ✅... Read more...
Filtration sur comptoir Coldstream CTO plus vraiment pratique!
Coldstream CTO Countertop Filtration is more practical!
The Coldstream CTO+ system is an advanced solution for water filtration and purification directly from your tap. Read more...
Effectiveness of the Coldstream FTO+ Filter
Coldstream FTO+ filters offer exceptional filtration performance, for all gravity filtration systems. Compatible with British Berkeyfeld, ProOne, Berkey, Monderma, Weeplow, Phoenix, Pure Filters. Read more...