Most modern carpet is treated at the factory with various substances that make them very stain resistant
. It should be noted though that stain resistant and stain proof are not the same things, there is not,as of yet such a thing as a stain proof carpet. Spills and accidents happen but whether or not they permanently stain your carpet depends upon how fast,and how, you react when they do occur.
When liquid is accidentally spilled on their carpet it is some people's almost natural reaction to begin scrubbing away at the affected area frantically. This is not the right thing to do. Vigorous scrubbing will spread the stain even further and possibly permanently damage the carpet pile at the same time. Instead the liquid should be blotted up with a clean white cloth or plain paper towels, never the patterned or colored kind.
If you notice a stubborn stain the carpet stain removers that are commonly found in the local grocery store can be very helpful but proceed with extreme caution. Before you use any stain remover on your carpet test it in a small inconspicuous spot to make sure that it does not damage the fiber or the dyes of your carpet, as not all stain removers are suited for use with certain carpet types.
The best way to perform this kind of test is to put a few drops onto the test area and hold a clean white cloth over it for about ten seconds. Check the cloth and the carpet itself for color changes, transfer or other damage and if all looks ok you can proceed.
To remove the stain use the smallest amount of solution possible and once again, blot don't scrub. Once the stain looks like it is gone, rinse the affected area with cold clean water and blot it as dry as possible with another nice clean cloth.