cause it does
this is a scientific reason therefore the white wine sinks into the carpet or what ever you have the red stain is and when the white wine sinks into the stain it releases the red stain particles and the red stain particles mix in with the white wine therefore the red stain is vanished
by applying white wine directly to the red wine stain
White wine will usually remove a red wine stain.
You don't but you can make white wine form red grapes just remove the skins before they stain the juice.
To remove a red wine stain from white pants, first blot the stain with a clean cloth to absorb as much of the wine as possible. Then, mix a solution of equal parts water and white vinegar, and gently dab it onto the stain. Allow it to sit for a few minutes before rinsing with cold water and laundering as usual.
Some of the ways that one can get a red wine stain out of a clothing article or from a carpet are to use a towel that blots the red wine up. A towel that is made from paper is often most useful. Another way would be to use to use a damp cold water cloth to gently pluck up the wine from fabrics.
I have found that the best thing to remove red wine from carpet is a product that is available for sale called Wine B'Gone Stain Remover Spray. I often find it for sale at wine tasting rooms, but you can also order it online. It does work. This product is called Wine Out. It really does work, it easily removed a stain from my white t-shirt as well. A description can be found here; http://www.buybrandtools.com/acatalog/Gonzo-Wine-Stain-Remover-1oz.html
How to remove a carpet stain would depend upon what the stain is. The best way to remove a red wine stain is actually to pour white wine onto it and then blot it up.
Put White Wine Over It.
To remove red wine from a white duvet cover, first blot the stain gently with a clean cloth to absorb as much wine as possible. Then, sprinkle salt or baking soda on the stain to help absorb the liquid, letting it sit for a few minutes. Rinse the area with cold water and apply a stain remover or a mixture of dish soap and hydrogen peroxide. Finally, launder the duvet cover as per its care instructions, and check the stain before drying, as heat can set it.
WITH A PAIR OF SCISSORS.
answer 1: The colour in the wine is from soaking the skins of grapes in the juice during fermentation. It is not from the grapes, they are colourless. I suppose the colour is what makes it stain. answer 2: Spillling red wine on your shirt makes a red wine stain.. ^_^
You need to blot out the stain with a white paper towel as soon as possible. A little cold water and dish washing soap may help. Do not rub- only blot. If the fabric is washable , detergents and stain-removal products claim to be able to take out wine stains. There is even a product made for wine stains on carpets. The related link may help.