put the food in a plastic bag, zip it up, put the plastic bag in another big plastic bag and put the ice water in the bigger plastic bag. this keeps it cold until the ice melts.
Ice
One way to keep an ice cube from melting away is if you keep it in ice water.
Tray
it is ice chest
Most people would say ice, because it's colder, but I say neither is. Ice is just frozen water (which is a physical change), therefore, neither is better than the other.
Melting ice stays at the same temperature until it is all melted to water.
The water would have to be colder than the ice to keep it cold. That is not possible unless it is brine(salt water). Then ice at 32f could be cooled by brine at say 30f.
ice...dry ice...
Ice..
You generally place the containers of food on a bed of ice.
Warm air and warm water. Cold air and cold water keep ice cooler longer.
An icebox is a type of refrigerator. It is a chilled box that is used to keep things cold. Ice boxes are kept cold with large blocks of ice that keep the food cold.
put them in cold water
cold water
Ice, refrigerator.
drink cold water, eat ice cream, or even suck ice.
You should always use a thermometer.