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InfiniteNothing
10-12-2005, 03:07 PM
This one may be a bit more philisophical. If I have a half gallon of milk that expires on the 10th and a half gallon of milk that expires on the 20th, does combining them give me a gallon of milk that expires on the 15th?
Airencracken
10-12-2005, 03:13 PM
Um no. :P

you'll just get curdeled milk mixed in with your good milk after a certain date.

It's called contamination. :P
Grimm
10-12-2005, 03:20 PM
It all expires on the 10th.
InfiniteNothing
10-12-2005, 03:32 PM
Um no. :P

you'll just get curdeled milk mixed in with your good milk after a certain date.

It's called contamination. :P

I don't see how the old milk can curdle selectively if it's homogenous with the good milk.
Airencracken
10-12-2005, 03:34 PM
it won't. The other milk is in solution. maybe they'll be less curdling?
molecularfire
10-12-2005, 04:35 PM
Milk goes bad and curdles because of the acid that the bacteria produce. The bacterial growth is what causes the problem. Now, bacteria grow exponentially so while diluting the bacteria 1:2 will prolong the amount of time you have till it goes bad, it isn't going to be exactly in between 10 and 20 days... it'll be much closer to 10 days because the only time you've bought is 1 doubling time which varies depending on how cold your fridge is and how much time the milk spends outside of the fridge but at body temperature the doubling time can be as short as 20 minutes.
zippyjuan
10-12-2005, 04:59 PM
Also once you open it, it will usually last not much more that a week even if it has a date after that. The exposure to air helps the bactria to grow.
Kevster
10-13-2005, 03:31 AM
If you try to drink that milk 2-3 days after the expiration date, you better let your SO sniff it first. Women genetically have better noses than men do and they can detect bad milk before we can.
Nija
10-13-2005, 03:44 AM
If you try to drink that milk 2-3 days after the expiration date, you better let your SO sniff it first. Women genetically have better noses than men do and they can detect bad milk before we can.
Why are you awake and thinking about milk?
InfiniteNothing
10-13-2005, 06:26 AM
No... but remember the date is not really the actual... it may last 1-2 day after the written date... but combining them is not a good idea coz the PH level of those milk are different from each other... trust me my mom is a chemist!!! she's the lead chemist @ California Dairies!!!

What's wrong with mixing milk of two pHs.
oblongmelon
10-13-2005, 07:20 AM
What's wrong with mixing milk of two pHs.
It's gross..
my question is: Why do you have two open containers of Milk? and my second question is...do you drink directly out of the carton-and if you live with anyone else-do they as well? (one is gross, two is worse)

Make some rice pudding and use up the older milk..leave the last expiration date for drinking.
WhiskeyPapa
10-13-2005, 08:15 AM
Milk is typically sold with a "sell-by date", not an "expiration date". This date is used by manufacturers to tell grocers when to remove their product from the shelves. If properly refrigerated, the milk will still be good for a week beyond that date. It will still be safe to drink up to two weeks after the date, but may not have the freshness and flavor you desire.

Mixing two perishable food items typically will give you the equivalent "expiration date" of the older item. So in your example, you will end up with a jug of milk with an "expiration date" of the 10th.
InfiniteNothing
10-13-2005, 08:16 AM
It's gross..
my question is: Why do you have two open containers of Milk? and my second question is...do you drink directly out of the carton-and if you live with anyone else-do they as well? (one is gross, two is worse)

Make some rice pudding and use up the older milk..leave the last expiration date for drinking.
One for work and one for home. And I tend to use glasses but late at night sometimes I don't care at home.