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Author Topic: Degreasing Bear Skull  (Read 10251 times)

Offline troyspinetar

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Degreasing Bear Skull
« on: December 30, 2013, 07:13:35 AM »
So my skull has been cleaned, now sitting in "Dawn" degreasing bath. I've read it can take weeks to months at this stage. My question is, how do you know when the skull is done? Is there a particular look or feel to the skull or should the bath water have a certain tint? I'm ready for the long haul, but being this is my first time I'm not sure exactly what to look for. Thanks.
I've been looking on the forum for tips and tricks on the topic, forgive me if I've missed it. Thanks!

Offline PolarBear

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Re: Degreasing Bear Skull
« Reply #1 on: December 30, 2013, 07:18:41 AM »
After a few days the bubbles will leave and it is flat water.  Look for the thin grease slick on the top of the water.  I let it go until I no longer get that grease slick after changing water and letting it settle.  I'm doing an elk head right now that has been degreasing for 2 months and still is not done.  Bear might take even longer.

Offline troyspinetar

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Re: Degreasing Bear Skull
« Reply #2 on: December 30, 2013, 12:24:57 PM »
Right on thanks Polar Bear!

Offline PolarBear

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Re: Degreasing Bear Skull
« Reply #3 on: December 30, 2013, 12:32:09 PM »
No problem.  It takes a long time but it is well worth it especially if you have ever done one only to have grease leach through a couple of months after hanging it in your house.

Offline troyspinetar

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Re: Degreasing Bear Skull
« Reply #4 on: December 30, 2013, 12:52:43 PM »
For sure. I was amazed at how greasy and slimy the skull was when I was picking and cleaning! It should turn out nice.

Offline blindluck

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Re: Degreasing Bear Skull
« Reply #5 on: December 30, 2013, 01:09:59 PM »
PolarBear, what is your water temp for degreasing, right now I have 4 bear skulls and a deer degreasing in a tub with a fish tank heater about 82 deg. 

Offline PolarBear

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Re: Degreasing Bear Skull
« Reply #6 on: December 30, 2013, 01:21:19 PM »
I keep mine around 90-92.  I found out last year that putting a bunch of heads in at the same time made it take longer and was tougher to get th grease out.   :dunno:

Offline blindluck

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Re: Degreasing Bear Skull
« Reply #7 on: December 30, 2013, 03:42:16 PM »
Note taken, Thanks

Offline troyspinetar

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Re: Degreasing Bear Skull
« Reply #8 on: December 30, 2013, 07:24:48 PM »
Does it not work if you don't have your water up above room temp? Or does it just take longer? I guess I need to pick up a heater. Thanks guys.

Offline Elk whack master

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Re: Degreasing Bear Skull
« Reply #9 on: December 30, 2013, 07:34:58 PM »
How so you get the water to 120? A special heater? I used a  big aquarium heater and only able to get it to low to mid 90s in a cooler outside last  winter.
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Offline Elk whack master

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Re: Degreasing Bear Skull
« Reply #10 on: December 31, 2013, 09:50:11 PM »
Thanks! I'll try that to finish degreasing. I gave up and its still has yellow spots sitting in a garbage bag.
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Offline blindluck

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Re: Degreasing Bear Skull
« Reply #11 on: January 01, 2014, 08:10:06 AM »
Thanks to everyone for the tips, I just built a degreasing tub with a 1500 watt heater element, I filled it with water above the element and put my two 5 gal buckets full of water in the tub now she is degreasing away at 120 degrees. No more fish tank heater.

Offline blindluck

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Re: Degreasing Bear Skull
« Reply #12 on: January 03, 2014, 08:06:31 AM »
just out of curiosity what are peoples experience length of time degreasing a boiled skull vs a beetled or macerated skull? I would bet the boiled would be considerably longer.

Offline daydreamn

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Re: Degreasing Bear Skull
« Reply #13 on: January 03, 2014, 09:35:18 PM »
Macerated skulls.  48 hrs @130. About 1 cup of Dawn per 10 gallons water.  If they are fresh skulls I get zero oil spots when done.  Older skulls take a couple days longer.  I just finished 4 deer and a mt goat this week end and scraped about a full cup of grease and oil off the top of the tub.

Offline sirmissalot

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Re: Degreasing Bear Skull
« Reply #14 on: January 06, 2014, 10:38:35 AM »
You really need to get the water warmer than room temperature or even a fish tank heater can get. The easiest thing I've found for doing one deer or bear skull at a time is a 6 quart crock pot on the keep warm setting, its right around 120 which is perfect to get the fat and grease to leach out. I have a big tub with a water heater and thermostat for doing elk size skulls.

The more water change outs you do, the faster the process will go. You want to keep the skull in clean and clear water, so the first week or so you should be doing water change outs every day or every other day. When the skull is sitting in cloudy, greasy water its not going to pull the grease out nearly as fast. A bear skull should be done in a month or so if done right, but sometimes they will take a bit longer.

More dawn is not always better either, just add enough to make soapy water if you were to splash it around.

 


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