Cool Cans

Does anyone here have any experience with using a cool can to cool down fuel before aspiration?

the cans come in aluminum or plastic abd have a fuel line wound inside the can, which attaches to your fuel line. You add ice to the can replace the lid and as the fuel run through the line, then through the can, the ice cools it before entering the carb,

wouldnt all the ice melt in about 20 sec?