This is the beginning of an idea but there is one problem: You can’t maintain the temperature if you open the container.
这是此构想的开始，但是还有一个问题：如果你要打开容器的话就不能维持其温度。
2
Here a boy melts the recovered lead from a battery in an opencontainer.
图中是一个男孩在敞开的容器中融化从电池中回收的铅。
3
From this experiment, you can easily decide that storing water in an opencontainer is a bad idea unless you have a plan to purify it when you need to drink it.