Heat Treating Milk/Colostrum Question

Discussion in 'Dairy Goat Info' started by LostCreek, Feb 6, 2013.

  1. LostCreek

    LostCreek New Member

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    I get why someone would heat treat milk/colostrum before freezing it or bottle feeding kids. I haven't heat treated any milk/colostrum, yet (unless I was making cheese). I did try to heat treat some colostrum yesterday.

    I posted yesterday about a goat with a very full udder. I asked everyone about their experiences with full udders, and how close we might be getting to kidding. Lots of GREAT replies! (and she freshened yesterday afternoon)

    Vicki suggested milking her before she delivered which would give me time to heat treat the colostrum. I would never have thought of milking the doe before she'd delivered. I guess, in my mind, there's a colostrum clock ticking as soon as those babies are born. The doe is only going to make that super-charged colostrum for so long. I'm still relatively new to goats, and am still learning. Vicki is one who's opinion I trust and respect on anything goat related!

    So, after the kids had gotten up and had their first couple of shots of colostrum, I milked her down. I got about a half-gallon of good yellow colostrum. I brought it in, poured it into a pot, put it on the stove on high, and went to stirring. I figured that, just like making cheese, 180 degrees is the magic number--it's where the milk starts to come alive....right? I mean, I've made more than a couple of batches of cheese. After the first several batches using the thermometer, I realized that it was right at 180 degrees that the milk seemed to boil up the sides of the pot. So consistent was this, that I quit using the thermometer. Started just boiling the milk until it hit that magic number and came to life, then remove it from the heat, keep stirring, and add the apple cider vinegar slowly. Something VERY Different happened with this colostrum. As SOON as it hit that magic number and started to boil up the sides of the pot, I moved the pot from the stove and noticed that it had already began to curdle. As I stirred, it curdled before my eyes, and kept curdling until nearly all the milk had curdled, and left hardly any whey. Seriously surprised me!!

    Has this ever happened to anyone else? Anyone know (or have a guess) how or why this happened? How do you heat treat your colostrum?

    I mean, I don't waste much of anything around here. The hogs sure didn't complain about having it! And I know it had to have been GREAT for them! Heck, I was kinda tempted to try it!

    Thanks, in advance for sharing your experiences with heat treating milk/colostrum.

    Daniel
     
  2. Goat Town

    Goat Town Member

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    When heat treating colostrum it needs to be brought up to 135 degrees and held there for an hour. Do this in a double boiler, not directly on the stove burner. It needs to be stirred often or it will become pudding.
     

  3. LostCreek

    LostCreek New Member

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    :blush2 Lesson Learned.

    Thanks for your reply, Goat Town! Is it the same 135 degrees to heat treat milk, then? and the same hour?

    It's funny. When it did that, my partner Chris (a chef) said, "it turned straight into pudding!" I thought it looked more like early cheese, but I have absolutely zero kitchen credit. LOL :rofl

    Thanks, again!!
     
  4. Goat Town

    Goat Town Member

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    Pasteuring milk is different. You can heat it to 145 degrees and keep it there an hour. You canb also heat it to 165 degrees (what I do) and then hold it there for 15 seconds.
     
  5. LostCreek

    LostCreek New Member

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    Yeah. I think I'll do the 165 degrees for 15 seconds...don't think I can trust myself to stay focused enough to keep it at 145 degrees for an hour. I'm kinda spacey sometimes. No more often than I have colostrum, I can manage heat treating it slowly.

    Thanks, again!
     
  6. doublebowgoats

    doublebowgoats New Member

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    You have to treat the milk different from the colostrum, for sure. Congrats on your new babies!
     
  7. LostCreek

    LostCreek New Member

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    Thanks! They're so cute!
     
  8. hsmomof4

    hsmomof4 New Member

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    An easy way to do colostrum is to get a GOOD thermos (I like the Stanley metal ones) that will hold heat for a while. Preheat the thermos by filling it with very hot water (at least as hot as you want your colostrum to stay) and close it up. Then heat your colostrum on the stove in your double boiler until it comes to 135. Once it hits 135, turn off the heat, empty the warm water out of your thermos and put the colostrum in there, seal it up, and let it sit for an hour. Done! :) You may need more than one thermos if you have a lot of colostrum, but for me, this is the best way to do it without having to babysit the colostrum. I have a tendency to get distracted and this way, I'm not ruining my colostrum by forgetting it for a few minutes and turning it into colostrum pudding.
     
  9. LostCreek

    LostCreek New Member

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    GREAT Idea!!

    Thank You!
     
  10. NubianSoaps.com

    NubianSoaps.com New Member

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    There is no reason to heat treat the colostrum or pasteurize the milk if you are going to let the kids nurse off mom anyway. Is your doe herd tested negative via an Elissa test for CAE? That is the only reason we heat treat and pasteurize kids, is to stop the spread of disease from dam to kid via the colostrum and secondary the milk. It has nothing to do with freezing it for future use, since my herd is negative and long been negative, I feed raw colostrum and raw milk, and freeze both. Vicki
     
  11. LostCreek

    LostCreek New Member

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    Vicki,

    I still haven't tested my herd. :nooo I know I need to...and the sooner I know, the better.

    I'm still on my "learnin' herd". I bought unregistered stock, as morbid as this sounds, so that any casualties due to my ignorance would be $50-100 rather than $300-600. I plan to start phasing into registered stock in the near future. At this point, though, all of the offspring have either been kept (only doelings) or sold for slaughter (bucklings).

    Our first two does were bought at auction (no clue about CAE). Two were born here to one of the does we bought at auction. Two others were bought from an ad on craigslist. I actually knew what CAE was by then, and knew to ask the lady if she tested for it. She knew about it, had never seen any sign of it in her herd, and had enough unrelated stock not to have to buy goats from others, so she saw no need to test. We bought a seasoned doe, and 2 yearling doelings from her that day, and have since sold one of the yearlings. So, I have no idea if 2 of our does have EVER been tested, and I know that four of them have never been tested. Then there are two 2012 doelings who also need tested.

    After reading another thread today, I have decided to put testing them to the forefront of my to do list.
     
  12. NubianSoaps.com

    NubianSoaps.com New Member

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    It's the hardest part, not knowing. You will kick yourself if you didn't test before kidding season. Most do have positive goats their first testings, sadly. And we all learned the whole "we don't have CAE because we have never seen symptoms" story ourselves. Good luck, make sure you use biotracking.com At some point it becomes about what we are selling to new folks, and not so much about what we have on our place that is bothersome, least ways to me it was. Vicki
     
  13. lonestrchic23

    lonestrchic23 New Member

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    Oh yes, milk and colostrum are nothing alike.

    I pasteurize milk by heating to at least 165° for 30 seconds.

    When I heat treat colostrum, it's in a double boiler. After I get it to 135°, I set the timer for one hour. I don't let it drop below 135°, nor go above 140° during that time period. Too hot and it's pudding that is worthless with all the good antibodies killed... Too low and you don't kill off things like CAE.

    I practiced a few batches with water and the thermos method to figure out how to keep it in the right range for an hour. Took me 3 tried, but on the last one, I checked the temp after an hour and we were still at 139° :) Didn't want to risk wasteing good colostrum while I figured it all out :)