The philosophy of the ice making ;-)

Despite some negative reviews - you can buy the product hesitation, if you follow some basic rules.
For the most criticism is the durability of the lid, specifically the fastening straps. The problem can be avoided with three simple principles:
1. Only limited filling with water.
Respectively at the corners of the water troughs 21, the side wall is lower. These reductions serve as overflow. Once you have plenty of filled water, you can tilt the form several times in each direction, so that excess water is poured. Following the water level should be in all the hollows below the overflow.
Reason: Water expands when it turns to ice. (The only reason why the Titanic iceberg was ever seen. If the volume of water remain on freezing equal or would small, ice would close or fall with the water surface.) If too much water is introduced, it thus acts as a disintegrating agent. That can withstand any tab in the world!
2. Hold the tray after filling horizontally and freezing level.
When the bowl is tilted, running water together on one side. Then it blows up the tab (only) to this page - this does not make it better.
The statement "100% leak-proof - even in an inclined position" in the product description leads mE astray. The only advantage in this regard is for me only if I stumble on the way to the basement, I do not wipe. Before I put the box in the freezer, I check again that all wells are filled evenly.
3. Remove
The tearing immediately after removal from the freezer would get the lid is not good. Since I anyway use for the dissolution of ice water, I let it run well on the lid. By the way: cold-warm water is enough; hot would be counterproductive. After a quick shower can be both the lid open slightly as also decide to die.

A few words about physics:
I also know people who kloppen the Eiswürfelbox after Rausholen from the freezer with the opening facing downwards on the table - until such time as / all the ice cubes have enough removed from the mold. What barbarism!
The reason you mention: if you would keep the shape under the water, then the ice would already warm.
Who knows some physical principles, is an advantage here! Yes, the ice is the 'waters' of the mold before removal from -18 ° C (estimated) at - 5 ° C heated. However, this is not at all decisive. Because of the cooling effect is used from solid to liquid mainly the oversized heat capacity of ice or water in the transition of state. (In the reverse direction, it is called 'latent heat').
Specifically: Its melting of ice takes 150 times as much heat on (that deprives it of my lukewarm apple juice), as the heating of the ice cube by one degree. In other words, ice is cold minus 150 ° C (something no **** - Trade), takes exactly as much heat when melting on how the 'heating' of minus 150 ° C to 0 ° C before. Still another way: how cold the ice is, does not really matter, the cooling effect is achieved by melting.