I have nothing to add regarding the filter method, but that Chinese rice liquor really is the most disgusting beverage I ever tried.
Even worse than German burning nettle schnapps.
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Mythbusters tried this, and were a bit surprised thst it works. They were able to turn cheap vodka into premium (as confirmed by blind testing with an industry professional).
However, the filters get consumed pretty quickly, and cost more than buying good stuff in the first place.
With rice liquor, if it's that horrible to begin with, maube don't buy it?
Yea, i was shocked at how effectively the filter works.
there's no margin of error, you instantly know that you're tasting a higher quality liquor after filtering it.
So many liquor companies brag about how many times they've distilled or filtered their booze on the bottle, but every liquor I've tried has tasted vastly superior after the filter.
The filters are only a few bucks each and they last for months or 40 gallons so even if you underestimate their use down to only 10 gallons of great liquor from one Brita filter, it's much cheaper than buying middle or top shelf.
with rice liquor? I'd say don't buy it, no maybe about it.