It is now becoming apparent, however, that a process in-between RO and UF, or ‘nanofiltration (NF),’ may prove to meet the greatest needs of the beverage industry which is fine filtration of particles and only a slight reduction of dissolved contaminants.

UF can be thought to be ‘under-engineered’ where the potential exists for alkalinity or other inorganic contamination to rise above their respective limitations. RO, on the other hand, may be thought to be over-engineered’ in that it provides a water quality many magnitudes beyond known soft drink requirements, at a higher cost.

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