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| One side of aluminum foil is shinier know this thing before packing food |
We all use aluminum foil when packing our tiffin's. Whether it's roti's, parathas, sandwiches, or any other dry item, aluminum foil is crucial for keeping them fresh. But have you ever noticed that one side of the foil is shinier while the other appears a little dull? This leaves many wondering why this happens.
There's no special technique, trick, or marketing strategy behind this. It's simply a function of the foil-making process. Let's explore this in detail.
After all, how is aluminum foil made?
The process of making aluminum foil begins with molten aluminum. It is first prepared in large pieces. Then, it is repeatedly pressed and thinned using machines. This process is repeated many times to achieve the thinness of the foil. You may have noticed that the foil used in the kitchen is very thin.
Two sheets move together
In the final step of foil production, two sheets are placed together and passed through the machine's rollers. These sheets are then separated. This is where the difference between the shiny and dull sides becomes apparent. The side that directly touches the machine's steel rollers becomes shinier.
When is it important to choose the right side?
Normal aluminum foil doesn't require a specific side to be selected, but some companies sell non-stick foil. Such foil has a special non-stick layer applied to one side. This layer is usually the less shiny side. It's often labeled "Non-Stick Side," so people can identify which side to place the food on.
What things should be kept in mind while packing food?
If you want to keep food warm, it's best to keep the shiny side facing out. This will keep the heat inside. However, if you want to keep food cold, keep the other side facing out. Most importantly, the foil should be clean and in good condition. Remember not to store very hot or very sour items in foil for long periods of time. Also, avoid using torn or very old foil.
