That's a big batch for your first time soap making. Plus a complicated recipe for a first timer. Milk in cp can be a pain to get right, so I wouldn't try it until having some regular batches under your belt first.
Always use a soap calculator before making a batch of soap. Here's a couple different ones:
http://www.soapcalc.net/calc/SoapCalcWP.asphttp://www.brambleberry.com/Pages/Lye-Calculator.aspxMight I suggest a couple soapmaking books before trying your next batch:
The Everything Soapmaking Book by Alicia Grosso
http://www.brambleberry.com/The-Everyth ... P4400.aspxThe Soapmakers Companion by Susan Miller Cavitch
http://www.brambleberry.com/The-Soapmak ... P3731.aspxVery informative. You might be able to find them at your local library.
It was so crumbly and hard because of the lack of water/liquid. So, it may not be safe to use. Plus, you didn't say what kind of olive oil it is or coconut oil. There are different kinds that do different things in soap.
I've never added the milk to the oils. Usually when I've used milk, I use frozen milk. I add the lye to the frozen milk or the frozen milk/water combo.
The brownish liquid could be milk has seeped out. Which isn't good if you already had a water discount.
Honestly, I would just trash that batch. Then read, watch Anne Marie make cp soap, read some on the forum, ask questions on the forum, etc.
Here's Anne-Marie's you tube videos.
http://www.youtube.com/watch?v=yR6ttCSr ... xFoZ1pCeY=