Storing batteries in a fridge or freezer does not make them last longer, it's just a myth.
If you want any batteries to last longer then put the batteries in your fridge and that helps them to last longer!!
Yes
After it is done baking, putting white cake in the fridge will make it last longer.
to keep food/make food last longer and to storage food
they are added to make food look better and last longer....not good for you
it can make our food last longer
Putting it in the fridge will probably help. It should get dimmer, but last longer.
Salt, sugar, vinegar, drying or freezing
No, there is no food item that has such effect.
I keep all my fruit in the fridge, it tends to make them last longer. For some reason my pears were quite hard though, I'm not sure if it was because I kept them in the fridge or if they're just bad pears. Otherwise, they taste alright and keep for over a week in the fridge
sugar makes it last long