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Yes, trichinae (the larvae of a parasitic worm called Trichinella) can be killed by freezing. Freezing meat at -15°C (5°F) for at least 20 days, or at -23°C (-9°F) for at least 6 days, can effectively kill trichinae larvae present in the meat.

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1y ago

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Do watermelons survive freezing temperatures?

No, watermelons are sensitive to freezing temperatures and can be damaged or killed by prolonged exposure to cold conditions. It is best to store watermelons in a cool, dry place above freezing temperatures for them to stay fresh and maintain their quality.


Can spores and toxins surrvive freezing?

Yes, many spores and toxins can survive freezing temperatures. Spores, particularly those produced by certain bacteria and fungi, are designed to withstand extreme environmental conditions, including freezing. Toxins, depending on their chemical nature, may also remain stable and functional after freezing. However, the specific survival of spores and toxins can vary based on the organism and the conditions of freezing.


What is the effect of freezing conditions on bacteria and fungi?

Freezing conditions can inhibit the growth and reproduction of bacteria and fungi by slowing down their metabolic activities. However, some bacteria and fungi have adapted mechanisms to survive freezing conditions by producing antifreeze compounds or spores. When the temperature rises, these organisms can resume their growth and metabolism.


Do substances have to be cold to freeze?

No, substances do not have to be cold to freeze; they need to reach their freezing point, which can vary depending on the substance and the surrounding pressure. For instance, some materials can freeze at temperatures above freezing point if conditions such as pressure change. However, typically, lowering the temperature helps achieve the necessary conditions for freezing.


What is radon freezing point?

Radon is a noble gas and remains in a gaseous state at standard temperature and pressure. It does not have a freezing point as it does not freeze under normal conditions.

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