![]() I recommend a no-scratch/no-residual smell method of drying a clean wine decanter. The purple colour comes, in part, from focused scattering of short wavelengths (purple/blue) by the small pits and scratches on the glass surface.ĮISCH and other crystal decanters inevitably receive micro-scratches when dried with any cheap, ink printed, rough dish-towel. The first evidence of etching inside your decanter is a purplish colour on the surface of the glass. This process can be slow (overnight) and with limited results if not done regularly. Though this process can take a long time (overnight) - wrap cling-film over the top of the decanter to stop the alcohol evaporating. The higher alcohol can slowly dissolve some of the organic pigments in the residue, and the water will dissolve the acids and sugars. Alternatively, pour in a small volume of white spirit (e.g. ![]() Use a dry white wine that already has similar molecules which you are trying to dissolve within the residue. Try to dissolve the residue in the decanter by using the same solvent in which the residue was originally dissolved, i.e. So the objective is to find something that dissolves these molecules in wine - or which chemically modifies them into something else that will dissolve and be removed easily. Plus an array of other organic molecules.Acids - tartaric, malic, lactic, citric, etc., all of which are moderately water soluble, and very soluble in alkaline solution, but are trapped within the residue.Residual and un-fermented sugars - various types these dissolve easily in warm water.Pigments originally dissolved within the wine now oxidized, these dissolve well in alcohol.Tannins - the older the wine, the less water-soluble the tannins can become.To help understand how to remove the stains, keep in mind what the residue contains: You can use a salt or vinegar and water solution, let it soak for a few hours, then wash it out several times with glass washing liquid and water, finally rinse thoroughly with warm water and dry upside down. If you are getting a white film or scaling, it is likely from a calcium/hard water build-up. Regular cleaning keeps your decanter clean and stain-free, but if stains have built up, you can remove them to restore the condition of your wine decanter.Ī Decanter Brush works very well (there are several options on the market). Besides being unsightly, over time a thick wine residue or heavy water scale can slightly alter the aroma of future decanted wines. When using your wine decanter frequently it can become stained as tannins and pigment from the red wine can build up a residue.
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