Bests & Worsts Reviews from Amazon

These are great for the price. Totally changed the way I knock back pure expensive liquor. It will be cloudy, crack, and melt faster if you do it right side up. PRO TIP FOR SOLID CLEAR(er) ICE: Fill it with pre-boiled/filtered or distilled water, and place them upside down in a very small cooler with 1/2 inch of water. A cooler like this would be fine: MIER Soft Cooler Bag Small Insulated Lunch Box Bag for Kids, Girls, Boys(Green) You'll have to place your finger over the hole so it doesn't leak and make sure they stay level in the freezer. When ice crystals form, they become less dense than water, so it freezes from the top down forcing the gas to come out of solution. Placing the hole on the bottom with water to retain the seal lets the air escape. Close the cooler for slower freezing, which takes about 2-3 days depending on your temperature. See the before and after pics. You don't have to spend all the crazy money on clear ice makers.