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Old 10-27-2014, 10:11 PM   #31
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There is also a difference between pasteurized and ultra pasteurized milk and dairy products. Ultra pasteurized is usually sold in the paper carton and is heated to a much higher temperature and gets a much longer date. Regular pasteurized often comes in plastic jugs and isn't heated as high, causing it to go bad faster.

I can have a carton of whole milk open for more than 2 weeks and it's still fine, same goes for my ultra pasteurized heavy cream.
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Old 10-27-2014, 10:14 PM   #32
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There is also a difference between pasteurized and ultra pasteurized milk and dairy products. Ultra pasteurized is usually sold in the paper carton and is heated to a much higher temperature and gets a much longer date. Regular pasteurized often comes in plastic jugs and isn't heated as high, causing it to go bad faster.

I can have a carton of whole milk open for more than 2 weeks and it's still fine, same goes for my ultra pasteurized heavy cream.

Yes, but only until you open the bottle/carton. Then the regular or ultra pasteurization makes no difference.
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Old 10-28-2014, 12:09 AM   #33
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I used to be able to buy restaurant pasteurized milk and half and half. I would never have a problem with them going bad. Now I can't find it anywhere in my area. I also found that the dates on the restaurant ones had a longer shelf life. Now the dates are for shorter length of time. But I go through milk products very fast. So I still don't have any problem. But they do taste different. Not as rich. I wish I lived next door to a dairy farm. I would be buying raw milk.
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Old 10-28-2014, 12:25 AM   #34
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The "sell by" or "best used by date" came about because consumers wanted to know how fresh their purchases were. It also shows you the hour and "date" it was processed. I used to know how to read those convoluted numbers and letters. But I forgot. Will have to look it up.

I used to shop at a small store right near me that sold their products that has a "sell by" date on them. The stores would pull them, Wilson's would collect them and sell them in their discount store at a lower price. I was told that their milk products were still good five days after the "sell by" date. I never reached those five days. Milk has always gone fast in my house.
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Old 10-28-2014, 12:31 AM   #35
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The following should answer some of your questions.

http://www.fsis.usda.gov/wps/wcm/con...df?MOD=AJPERES

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Old 10-28-2014, 12:36 AM   #36
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There is also a difference between pasteurized and ultra pasteurized milk and dairy products. Ultra pasteurized is usually sold in the paper carton and is heated to a much higher temperature and gets a much longer date. Regular pasteurized often comes in plastic jugs and isn't heated as high, causing it to go bad faster.

I can have a carton of whole milk open for more than 2 weeks and it's still fine, same goes for my ultra pasteurized heavy cream.
bc, do you know if ultra milk (apparently from udderly fantastic cows ) loses any of its nutritional value in the extra treatment?
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Old 10-28-2014, 07:25 AM   #37
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Oh, and cream does less longer, specifically because of the fat content.
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Old 10-28-2014, 07:47 AM   #38
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Yes, but only until you open the bottle/carton. Then the regular or ultra pasteurization makes no difference.
This is only from personal experience, but I think that ultra pasteurized being almost sterile to begin with does make it last longer once opened, since there is virtually no bacteria to begin with. I know that the ultra will stay fine up to 3 weeks open when the regular would last about a week. I sniff milk when it's been open a while and I'm always surprised that it hasn't turned. I just finished off a carton that had been opened a good 3 weeks (we don't consume much milk). Again this is just personal experience, my fridge could be extra cold or something.
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Old 10-28-2014, 07:51 AM   #39
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This is only from personal experience, but I think that ultra pasteurized being almost sterile to begin with does make it last longer once opened, since there is virtually no bacteria to begin with. I know that the ultra will stay fine up to 3 weeks open when the regular would last about a week. I sniff milk when it's been open a while and I'm always surprised that it hasn't turned. I just finished off a carton that had been opened a good 3 weeks (we don't consume much milk). Again this is just personal experience, my fridge could be extra cold or something.
I find that to be true with ultra pasteurized heavy cream, it lasts and lasts a long time after it is opened.
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Old 10-28-2014, 08:35 AM   #40
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I freeze milk. I normally can't drink a gallon of milk before it turns sour (the Girls love sour milk), so I put it in 1 qt zippies and toss it in the freezer.
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