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The process was developed by Terressentia in the US, which cleans and refines spirits after distillation, as well as rapidly ageing, filtering, purifying and flavoring.
The technique “transforms ordinary spirits into outstanding ultra-premium spirits significantly quicker and at a lower cost”. It is natural process that has been independently proven to reduce unwanted congeners and induce a conversion of certain fatty acids to esters (glycerides), thereby creating a much smoother mouth feel and enhanced taste and flavour. It can also be applied to flavouring spirits to ensures flavours are combined at a level where they do not separate in the glass or bottle. So long as there is a natural flavouring available, the process can flavour any spirit with any natural flavour. TerraPure reduces the need for extensive aging or multiple distillations.
How does the process work? TerrePure is a patented process which cleans and refines spirits, using a completely natural process, after the standard distillation process is over. It does this by using ultrasonic energy-driven oxidation to complete reactions that fail to complete during the primary distillation and avoids the time-consuming and less efficient processes of filtration, re-distillation, or barrel aging.
What scientific tests have been done? In 2010 the College of Charleston Chemistry Department ran tests which showed that the TerrePure process reduces the amount of congeners, particularly isobutanol, amyl alcohols, propanol, and methanol, present in distilled spirits. It has also been shown to reduce free radicals by up to 70%. The following graphs show the results.