Not necessarily. Supposedly modern refrigerators can handle the chilling of hot food. But personally, I help it out, either by separating the food into smaller, shallower storage containers to permit faster chilling or by using ice baths to cool the food down.
The FDA Food Code says that food should be cooled from 140 degrees F to 70 degrees F within 2 hours. Then the food should be further cooled from 70 degrees F to 40 degrees F within an additional 4 hours.
The issue with allowing food to cool slowly to room temperature is that naughty bacteria are prone to thrive and multiply at temperatures between 40°F and 140°F (5°C and 60°C). And the US Department of Agriculture - concerned for your welfare even though you live in Australia - is deeply upset when foods are allowed to linger in that temperature range. The USDA will allow you to keep foods in that range for as long as two hours if you have to do something foolhardy, such as go on a picnic. But two hours is the limit. And, of course, they would prefer that foods not linger in that range at all (and you'll have to agree with the USDA that even if you put room-temperature food in the fridge, it's still going to take a while for the temperature of the food to fall below 40°F).
Yes, from what I have heard and read. Moving hot food to a cold refrigerator can cause bacteria to form and grow rapidly. The food should be cooled to room temperature before refrigerating.
You should cool food down at least to room temp before freezing.The faster you cool cooked food the less likely bacteria will have to form on it. Putting it in an ice bath is the correct way to cool food before refrigerating or freezing it.
Refrigerating food retards bacterial growth. It does not stop it, it only slows it down.
Potentially hazardous food should not be left out for more than 2 hours, after which time it should be either refrigerated or reheated. If the ambient temperature is very warm, cut that to 1 hour.
Freezing in a freezer or refrigerating.
Let it get to room temperature before you put it in the refrigerator. It doesn't take that much longer to cool and if you put it in the fridge hot it will get everything in there warmer.
Food that needs refrigeration should be cooled as rapidly as possible and held at that temperature. Shallow containers allow food to cool quickly, lowering the chances for bacteria to grow.
You can smoke or dry food to store it.
I know of a few: its contact to air, the temperature, the humidity and what form of food you are refrigerating.
No, it is not recommended to put tin cans in the fridge as the metal can react with the food inside and potentially contaminate it. It is better to transfer the contents to a different container before refrigerating.
A large quantity of food must be cooled by immediate refrigeration. The refrigerator's temperature should be set as cold as possible and, if practicable, the food to be cooled should be refrigerated on shallow trays or dishes to allow for quick cooling. You could also put your trays of food into the freezer until cold, before covering or sealing and refrigerating.A large quantity of food must be cooled by immediate refrigeration. The refrigerator's temperature should be set as cold as possible and, if practicable, the food to be cooled should be refrigerated on shallow trays or dishes to allow for quick cooling. You could also put your trays of food into the freezer until cold, before covering or sealing and refrigerating.
The best fresh food temperature is 40 degrees Farenheit. If it's any colder then the food is likely to freeze, and any warmer then the food won't keep as long or as safely.