How can I keep an ice cube from melting?

Crushed ice helps to quickly cool down drinks. Therefore, restaurants that maintain beverages at room temperature tend to use crushed ice in drinks. These drinks were cold but partly diluted before being served

If you consider all very small ice cubes that are used to cool drinks, its surface area is so large that the effect of crushing ice is good.

Because I have drinks in the refrigerator, it is not the purpose to cool drinks or prevent drinks from getting hot.

I will use these, the ice has a longer life span and the drink will be diluted to a lower level. The reason is that the volume is larger than ordinary ice, so it can absorb more heat without melting.

Pouring hot water on ice is an easy way to melt. The warmer the water, the faster the ice melts. You can boil the pot water and put ice there, and you can also see the ice melt slowly as you pour water. The extreme contrast between heat and cold melts the ice quickly. Put the ice in the bowl and place it outside the sunshine. On a hot sunny day, the heat from the sun melts your ice in just a few minutes. On a cool day, it may take longer, but the sun can still do the job. Heat from the sun will melt the ice and will evaporate the water from the melted ice

When Ice is melted in a glass of water, it is exposed to air and water. Ice in water melts faster than ice in the air, but as the ice melts the ice further sinks. If you support ice to prevent ice sinking, you can see that the ice underwater melts faster than the ice in the air.

Have you ever seen ice melting? The process of shrinking and expanding water is an attractive process during freezing and thawing. Perhaps you may have noticed that the ice in the drink dissolves quickly if they are shaped other than in other shapes. Is the shape of ice really different? Assuming the room is above the freezing point, the surface area of ​​the ice absorbs heat from the room and melts the ice. How can I melt the ice fast? How can I melt it more slowly?