Cooling is not very good, but at least

I bought the reusable ice cubes because I use a lot of ice and thereby constantly snow crystals are formed in my icebox. This reusable ice cubes have eliminated this problem. Unfortunately, they do not cool so perfectly, melt very quickly and make a drink at best laukalt, but that's probably not help. But you see the drink very funny and do not go immediately (contrary to my expectation) broken.