It’s scorching hot right now, having a cool glass of ice water is definitely the best. Buying ice outside is convenient, but how can you guarantee its cleanliness and safety like homemade ice?
If you frequently use ice, then pocket this little trick to freeze ice faster while saving electricity.
First, wrap the ice tray with aluminum foil.
Now you put the ice tray in the refrigerator. If you want to verify, you can also put a regular ice tray without wrapping it with aluminum foil in the refrigerator!
Here are the results!
After 2 hours in the refrigerator, the tray wrapped with aluminum foil is completely frozen, while the tray without aluminum foil is still filled with water.
The reason why the tray wrapped with aluminum foil freezes ice faster is that aluminum foil has a very good thermal conductivity. Wrapping the ice tray with aluminum foil helps create coldness faster, so the water freezes more quickly.
According to ICTVietNam