“Unveiling the Secrets: How Your Favorite Drinks Lose Their Kick Without Losing Flavor!”
A related process is osmotic distillation or evaporative perstraction. Like in reverse osmosis, the beverage is forced at high pressure past a semi-permeable membrane, on the other side of which a stripping fluid – typically water – is forced in the opposite direction, forming a counter-flow diffuser. In this method, the pressure of the beverage causes the ethanol to evaporate and diffuse through the membrane, whereupon it condenses in the stripping fluid and is carried away. Like reverse osmosis, osmotic distillation is carried out at low temperatures, preventing the denaturing of flavour compounds, but is slightly more energy-efficient.
Finally, the last major method used for de-alcoholizing wine and beer is nanofiltration, in which the beverage is forced through a semi-permeable membrane covered in tiny pores ranging from 1-10 nanometers in size, which allows nearly all the flavour compounds in the beverage to pass through while leaving ethanol molecules behind. This method allows larger volumes to be processed faster than reverse osmosis or osmotic distillation, reduces alcohol content by about 7-10% per pass, and operates at lower pressures, making it more energy-efficient.
And that, dear viewers, is how caffeine and alcohol-free drinks are made. Thanks to more than a century and a half of technological innovation, we can now enjoy some of our favourite vices while suffering almost none of the consequences – and isn’t that the very essence of human civilization?
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