What is the most apropriet for cooking soup between 29 Celsius 75 and 12 Celsius?

It seems like you're asking about the appropriate temperature for cooking soup. Here's the breakdown:

* 29 Celsius (84 Fahrenheit) and 75 Celsius (167 Fahrenheit) are very high temperatures. While you *could* technically cook soup at these temperatures, it's extremely unlikely and would likely lead to burning and a very unpleasant outcome.

* 12 Celsius (54 Fahrenheit) is too low for cooking soup. Soup needs to be heated to a temperature high enough to cook ingredients properly and kill bacteria.

The ideal temperature range for cooking soup is between 85-100 degrees Celsius (185-212 Fahrenheit). This ensures:

* Ingredients cook thoroughly.

* The broth boils and flavors meld.

* Bacteria is eliminated.

Here's a more detailed explanation:

* Boiling point of water: 100 degrees Celsius (212 Fahrenheit). Soup broth should boil to cook ingredients properly.

* Simmering: Around 85-95 degrees Celsius (185-203 Fahrenheit). Simmering is a gentler heat that allows flavors to develop and avoids vigorous bubbling.

* Low and slow: For some soups, like a slow-cooked stew, a lower temperature around 80-90 degrees Celsius (176-194 Fahrenheit) might be preferred.

Important Note: Always use a thermometer to ensure your soup is reaching the correct temperature.