View Full Version : Milk in a thermos?


chroot
01-05-03, 03:10 AM
So I'm new to the concept of thermoses.

I purchased my inaugural thermos today, along with a can of Ghiaridelli hot chocolate mix and a quart of 2% milk. I intended to make a quart of steaming, delicious hot chocolate to enoy throughout my night of astronomical observing up in the chilly mountains.

Well, I cleaned out the new stainless steel thermos the best I could (poured some boiling water into it, etc.), made the hot chocolate in a small pot straight out of the dishwasher, and put the resuling hot chocolate in the thermos. I tasted the hot chocolate a couple of times during its heating, and thought it tasted good.

Well... later on in the evening, I pulled out my thermos, poured a cup, and prepared myself for tastebud bliss. But the hot chocolate... just didn't taste good. It tasted a bit sour, like the milk was bad (it wasn't). It also made me feel a little queasy after drinking it, though perhaps it was only psychosomatic. I opted out of the other three cups in the thermos, and decided not to offer anyone else any.

Now, here's my question: does hot milk go bad? Certainly, if you leave milk on the counter overnight, it spoils; but this is due to the action of aerobic bacteria that need oxygen. In a sealed thermos, there isn't much oxygen, so the milk shouldn't spoil... or should it?

Am I a retard for storing milk-based hot chocolate in a thermos for a couple of hours? Should I stick to water-based hot chocolate in the future? What did I do wrong?!?!

- The Chocolate-Deprived Astronomer

wesmorris
01-05-03, 03:22 AM
Maybe it's just that hot milk tastes bad? That's why we drink it cold?

sycoindian
01-05-03, 05:02 AM
or someone just sold ya a piece of shit thermos.. ehehhe.. :D

reformedtopunk
01-05-03, 09:21 AM
I've had thermoses make drinks taste like metal before, and i'm guessing thats what happened with your thermos.

Bebelina
01-05-03, 10:27 AM
Reformed, that is normal. Hot chocolate in a thermos tastes a bit sour after a while, don't know why though. I have experienced this many times through my horrible schoolyears filled with endless meaningsless outdoors days.
Haven't tried with only milk though, try that and mix in the chocolate when you are going to drink it, maybe it tastes better then..?

(Q)
01-05-03, 12:01 PM
Perhaps the milk did not spoil but instead curdled. Quite common.

chroot
01-05-03, 02:06 PM
Originally posted by (Q)
Perhaps the milk did not spoil but instead curdled. Quite common.
Spoil, curdle -- whatever. If you get the milk too hot (nearly boiling) it will curdle, right? I don't think I did that... but it was steaming pretty good when I took it off the stove.

- Warren

pumpkinsaren'torange
01-05-03, 03:15 PM
:mad: :bugeye: :D

good lord, the enzymes in the milk are going to have a hey day with the lining of the thermos...

chroot
01-05-03, 03:17 PM
Originally posted by pumpkinsaren'torange
:mad: :bugeye: :D

good lord, the enzymes in the milk are going to have a hey day with the lining of the thermos...
It's stainless steel... I took that to mean, roughly, non-reactive.

- Warren

chroot
01-05-03, 03:56 PM
Should I try the hot chocolate trick again tonight? :-x

What should I do differently?

- Warren

UberDragon
01-05-03, 05:42 PM
That's what you get for buying 2% milk!!

chroot
01-05-03, 06:09 PM
Originally posted by UberDragon
That's what you get for buying 2% milk!!
What kind of milk should I use? Skim?? Skim doesn't taste good to me, in cereal anyway.

- Warren

UberDragon
01-05-03, 06:17 PM
use one and a half or one percent because 2% tastes like snot anyway.

reformedtopunk
01-05-03, 08:57 PM
2%?!:bugeye: no way! go with WHOLE MILK! the rest tastes like shit! (IMHO)

(Q)
01-05-03, 09:05 PM
chroot

The only reason I can think is that you somehow managed to get something acidic into the milk causing it to curdle.

Get out the litmus paper. :D

EvilPoet
01-06-03, 06:30 PM
Warren,

Do you still have the all the paperwork (directions, warrenty,
etc) that came with the thermos? If so, look and see if it says
something about it there. If not, perhaps there is a costomer
service number you can call so you can ask them directly. If
anyone should know they should. :)

chroot
01-06-03, 06:33 PM
Well, I made hot chocolate again last night -- with skim milk and a different kind of chocolate. It came out nice. I have the feeling the other chocolate I bought just didn't taste good......

- Warren

Zero
01-06-03, 06:33 PM
How about if milk just plain goes bad unless you freeze it? I doubt if you can stop the 'aging' of milk otherwise.

EvilPoet
01-06-03, 06:44 PM
Warren: Good, glad it worked out. :)

One last thing before I jump out of this thread. This is
something I try to keep in mind when dealing with any
perishable type food - when in doubt throw it out.

ProCop
01-07-03, 11:16 AM
Well... later on in the evening, I pulled out my thermos, poured a cup, and prepared myself for tastebud bliss. But the hot chocolate... just didn't taste good. It tasted a bit sour, like the milk was bad (it wasn't). It also made me feel a little queasy after drinking it, though perhaps it was only psychosomatic. I opted out of the other three cups in the thermos, and decided not to offer anyone else any.

A silent flew prawl of an nigth bird whose dropings proved that the absolute randomnes doesn't exist and that all is in the hands of a small mean god who is full of mischief and enjoys candid camera moments which only he can see....

wet1
01-07-03, 12:56 PM
Sometimes your taste buds can pick up the taste of milk going bad long before it goes bad. At other times it has to be a bit closer to the time.

I have always been sensitive to the taste of milk going bad and found that usually it bothered me a day or two earlier than my counterparts could detect.

Milk is not one of those items that does well in a thermos.

A tip for keeping your liquids warm longer. Fill the thermos with hot water prior to use. Allow enough time for the lining to absorb the heat from the water before pouring it out and filling it with whatever you wish to take with you. Heat is lost in the liquid you take with you in warming the liner. By eliminating the heat transfer to the lining you gain a longer time that it will be hot.

Gifted
01-07-03, 02:41 PM
I made instant cider once. I tried pouring milk in for flavor and to cool it down, and up came little white flecks. The flecks tasted nasty. Perhaps something similar happened?

Gifted
01-07-03, 02:43 PM
Also, did you use an instant mix, or make it from scratch?

pumpkinsaren'torange
01-08-03, 12:30 PM
CHroot...you'd think so, but sometimes stainless steel can be destroyed (anyways..i'm sure you already know that) ...not so much by the milk's enzymes ;D but, rather by lack of oxygen in the passive layer of the container made of stainless. the passive layer can become damaged/corroded at certain points, so keep enough oxygen circulating around in the enclosed thermos to avoid such stuff happening like, pitting and small hole developments. in other words, don't leave the milk in the thermos for years and years, but, rather take the stopper/cork out from time to time and let the innards of your thermos breathe. why am i telling you this...i know you know. bye.


:)

pumpkinsaren'torange
01-08-03, 01:39 PM
:o :D ok ok...i'm back-peddling ....the first time i read your thread, i read through it quickly that i didn't even notice the stainless steel part. so, there.:eek: