In some cases you can get a mossy or fishy taste from some water sources.
Do ceramic catadyne filters freeze.
But the charcoal filter needs to be changed every 6 months or you could build up some nastiness.
If the filter starts to become clogged yu can take it out and swirl it in the river for a temporary clean the current filter replacement cartridges fit the older model.
The unique ceramic filter embedded with silver naturally destroys bacteria and protozoa.
High capacity ceramic filters can process over 1 500 gallons before requiring replacement.
The katadyn mini retails for under 100 and replacement filters cost approximately 50.
In testing with neutral water the katadyn pocket microfilter would impart an off taste to the water presumably from the ceramic filter.
Do not rely on this filter alone as a means to make water safe to drink.
Katadyn befree 0 6l water filter fast flow 0 1 micron ez clean membrane for endurance sports camping and backpacking 8019639 4 6 out of 5 stars 381 37 95 37.
The ceramic only filter in the ceradyn lasts for years.
It is a keeper.
Make sure you backflush the filter with a lightly bleached water solution before you put it away and lube the filter gaskets to give it a long life.
This activated carbon filter removed those off tastes.