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I know that boiling water kills bacteria in places like in Mexico. But does freezing water, like ice cubes, perform the same needed function?

2007-07-05 03:37:35 · 9 answers · asked by nevek_1 3 in Science & Mathematics Biology

9 answers

Freezing will actually kill some bacteria, but cannot be relied upon. Boiling water actually denatures the proteins and irreversibly kills the bacteria. Freezing, often DOES cause lysing of the cells, but doesn't always do this, and the cell simply is suspended until it thaws out. Bacterial cultures are often frozen in glycerin stocks to keep them in perpetuity. So even though they are susceptible to death by freezing, they CAN survive the temperatures, so you can't rely on it.

2007-07-05 03:40:31 · answer #1 · answered by btpage0630 5 · 11 3

Does Freezing Food Kill Bacteria

2016-12-26 11:32:24 · answer #2 · answered by ? 4 · 0 0

Does Freezing Kill Bacteria

2016-09-28 06:52:19 · answer #3 · answered by ? 4 · 0 0

RE:
Boiling water kills bacteria... does freezing?
I know that boiling water kills bacteria in places like in Mexico. But does freezing water, like ice cubes, perform the same needed function?

2015-08-04 04:54:32 · answer #4 · answered by Anonymous · 0 1

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No, freezing (domestic) only makes the bacteria dormant so may become active and reproduce when returned to room temperature.

2016-04-03 03:54:40 · answer #5 · answered by Anonymous · 0 2

It could possibly kill some bacteria but not all of it. You wouldn't eat raw chicken even after its been in your freezer for a while. Many types of bacteria are resistant to freezing and simply "hibernate" until thawed. Boiling destroys proteins and structure of the bacteria.

2007-07-05 03:43:28 · answer #6 · answered by Chris S 2 · 1 1

Some bacteria, those in the domain archaebacteria, which are called extremophiles thrive in earth's extreme conditions, such as a salinity, heat or cold. Obviously, you will not find such bacteria in your house, usually. Freezing bacteria would perserve them. However, some bacteria do not have the necessary cell components to survive harsh conditions. It all depends on the bacteria.

2007-07-05 05:12:21 · answer #7 · answered by Nick 3 · 0 0

yes but only if you do a rapid sussecion of freezing and boiling the rapid tempreture change doesn't give the bacteria a chance to adjust and they die

2007-07-05 04:04:36 · answer #8 · answered by Micky D 3 · 0 0

No. Freezing will kill some bacteria but it will just put most of them in a hibernation state and they will become active again when they thaw.

2007-07-05 03:42:37 · answer #9 · answered by rragsdaleii 3 · 3 1

Yes, freezing water will also kill bacteria. When water freezes, it crystallizes, and expands. This permeates the cell wall of bacteria, and essentially causes them to explode. However, there are two disadvantages. First, toxins within the bacteria will be released, and can remain functionally active after freezing ant thawing. Second, Freezing water will take much longer than boiling. Therefore, it is safer and more efficient to boil water.

2007-07-05 03:45:18 · answer #10 · answered by Hovik G 2 · 1 6

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