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Salt lowers the freezing point of ice so when the temp. outside is lower then 32 degrees, the ice will still melt. When making ice cream, when the temp. is lowered, the energy given off is transfered to the ice cream making it freeze.

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Q: How is it that salt can be used to melt ice but to freeze the ice cream mix?
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Does salt make water freeze?

No. It's used to melt ice.no wat ever


Why is salt important in making ice cream?

Rock salt is used because it causes the ice in the bucket to melt, but at the same time to be cold enough to freeze the ice cream inside of the canister. I am of course talking about the hand churned ice cream. If you didn't use salt, you would not be able to turn the canister to churn the ice cream mixture into a freezable substance.


Can rock salt be eaten?

You can eat rock salt but it is in a crude form. It won't hurt you and is generally used to make ice cream and to melt ice on sidewalks.


Is rock salt beneficial for blood pressure?

No. Rock salt is used to make ice cream and melt ice on roads. Regular salt is not good for blood pressure because it will raise it.


How is chlorine used in ice cream?

You can't eat chlorine in ice cream because you will be very VERY sick or you will die... Do not use chlorine in ice cream. It almost smells and tastes like bleach! My friend tried to put chlorine in her ice cream.... and when i was just about to say NO, I was too late... she pour on it and she said it tastes horrible... Then few days later she got sick. Never... EVER... put chlorine in ice cream. ---- Actually, chlorine is used in ice cream manufacture in the form of salt (sodium chloride). Salt may be added to ice cream as a stabilizer, and it is added to the ice used to freeze it. The salt causes the ice to melt faster and thus cool the ice cream faster.


Why is salt added to ice cream when your making homemade ice cream in an ice cream in a ice cream freezer?

You add salt to ice to lower the temperature of the ice/water mixture. Without the salt, the temperature would not fall below 32F, which is not cold enough to make ice cream. The freezing point of salt water is below that temperature and thus allows the cream to partially freeze, a necessary part of making ice cream Salt causes water to freeze at a much lower temperature. Adding salt to the ice causes the temperature of the brine solution to drop dramatically, while freezing the ice cream inside the container. As the ice melts, the "heat" of the ice mass is preserved by lowering the temperature. (It's called "latent heat") It takes approximately 80 calories of energy to melt a gram of ice. That latent heat principle is used to lower the temperature of melting ice, thereby allowing the ice cream to freeze. It's an example of simple physics and is described in most physics books and physics classes.


Why salt is used in solidifying the ice cream?

It helps to make the ice melt after it's been solified. I'm sorry if it's incorrect...


Will popcorn salt melt ice?

Yes, the salt on popcorn is common table salt, which can be used to melt ice.


Why does salt water freeze stuff faster?

It doesnt. The chemical reaction of the salt makes the freezing point of water lower, hence making water that would normally freeze at 32 degrees Fahrenheit melt. This is why it is used on roads or sidewalks when it is icy outside.


Why is salt used in the preparation of ice cream?

Ice cream makers that consist of a container enclosed in a larger bucket of chunks of ice include salt with that ice because the salt lowers the temperature of the entire mixture. The salt causes the ice to melt, creating a drop in the temperature of the resulting icy salt water.


Do rock salt or table salt freeze homemade ice cream faster?

No. But ice and water with table salt dissolved in it, can.The salt lowers the freezing temperature of the water, so that it can remainliquid even when it's below 32° Fahrenheit (0° Celsius). In that condition,it can be used to cool the can in which the ice cream ingredients are mixed, andcan freeze it faster than solid normal ice could.


Why do you use salt to melt ice?

Salt works by lowering the melting or freezing point of water. The effect is termed 'freezing point depression'. http://en.wikipedia.org/wiki/Freezing-point_depression When you add salt to water, you introduce dissolved foreign particles into the water. The freezing point of water becomes lower as more particles are added until the point where the salt stops dissolving.