Personally, I purchase Boone’s Farm wine and the secret is to wrap an Omega E Mat around it. I find that the longer you leave the E Mat in the freezer, undisturbed, prior to the wrap the better. An added bonus is I find my refrigerator runs on less electricity while the E Mat is in the freezer. So much so that I am thinking of purchasing a second mat as I want the multiplier effect others have reported.
And before any of you nervous nellies and naysayers chime in, unless you have put it in your freezer and around your Boone's Farm your opinion is not valid.