There a common problem faced by "can collector" that is after a period of time aluminum can will burst or have leakage. This is due to the chemical reaction that happens inside the can itself. Mostly, the collector will decide to keep the beauty of the can by draining the remaining inside.
Here are some step to drain the coke can by take the remaining out through the top of the can opener. First of all, twisting the can opener in one side. Then make a marked where to create a small drain hole. After that, opening a hole for drainage, turn the can upside down to allow the remaining to drain slowly. Besides that, if you wanna increase the speed of draining, it's best to shake the can on a vertical motion continuously. In case if you realized there are still small amount of the drink is left inside the can, you can dry it off easily using hair dryer or hot water poured on the back of the can to allow the water to evaporate as steam.
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On the other hand, glass bottle is easier to take care which you can use any oil (cooking oils), to wipe the glass which will normally be stained with scratches over a period of time. With this, you will able to maintain it’s beauty for at least 1 year before cleaning it again. While for the bottle caps, apply a thin layer of transparent nail polisher to act as an overlay. It is widely available on any departmental stores. This is an important step to maintain the glass bottle’s beauty. This is due to a period of time, glass bottles that has unprotected bottle caps will have a thin layer of white particle formed on top of the drink which will look unpleasing which is normally caused by the rust from the bottle cap that is exposed to the open air.