The coldest it is possible to keep food is near absolute zero. To do this, one needs a multi-stage cooler, a cryofreezer with a dewar flask and liquid helium. For further cooling, an adiabatic magnetization cooler can cool your food to a few microKelvins.
aluminium foil keeps food colder because it doesn't let air in.
Aluminum is a better conductor of heat than glass, so it can help keep beer colder for longer. This means that a beer in an aluminum can will cool down quicker and stay colder compared to the same beer in a glass bottle.
Apparantely plastic keeps ice water colder because since aluminum water bottles absorbs the cold and the plastic doesnt so pretty much it keeps colder :)
aluminum foil
aluminum foil
aluminum foil
Aluminum foil is better at keeping things colder than waxed paper. This is because aluminum foil is a more effective insulator than waxed paper, as it reflects heat rather than allowing it to pass through.
yes
insulated bag that you provide, then paper and plastic is last
It keeps our food good. How does it affect people....it keeps them from eating spoiled food
yes food is excellent and it keeps you living.
aluminium foil. that's easy