At first when I started drinking my goats milk we drank it raw and I think that is fine for most folks, but for some who have health issues there is a need for pasteurization. I am one of those who should not drink it raw, according to my Rheumatologist. So, I've been looking for an easier way to pasteurize the nearly gallon or so that we get from our girls every day. We only milk once a day so we could probably get much more but I just can't use that much.
Enter the instant pot. I found an article that goes over the process for using the pot. This is without scalding the milk and having to stand over it for 30-45 minutes stirring. Since Bennie is the one having to do it every morning I wanted it as automatic as possible. So far it is working great. The milk actually gets a bit hotter than it actually needs to. Correct pasteurization temperature is to bring the milk to 165 degrees and hold for 15 seconds and then quickly cool down. I tested my new pot doing periodic readings. On several batches with water and then milk. The pot beeps when the milks temperature was in the 169-170 range. I would like to keep it at the 5 degrees lower but this is acceptable the milk is not scalded and seems to retain its quality. I will definitely have to add calcium chloride to my milk for cheese making to help it make a good curd but this looks very promising.
*update: I have tested it with timing the process and found that if I process 3 quarts and set a time for 22 minutes that it will be at just 165 and we can stop it then. So All he has to do is set the timer and the milk is perfect. I know that for cheese making that I should probably have it do the 145 degrees for 30 minutes. Meh, that is way too much trouble. I think that if people can make cheese with grocery store pasteurized milk mine will work. I'll just add CaCl to the batch. It does still make a skin on top but that is no big deal , it is a compromise but, unattended pasteurization is great.
In order to pasteurize with this method the instant pot it needs to be a model that comes with the yogurt function. The bonus for me is that I get a really good appliance that makes a super tender and tasty pot roast and great roasted potatoes as well. More on that later. Win Win!
Melinda and Bennie Pepper
We work in technology but are homesteaders at heart. We're trying to set up our homestead with productive systems that are sustainable. We have Nigerian Dwarf goats and chickens and are trying to garden and raise fruit trees.