Pasteurizer Considerations

[mrawlins]

I'm looking to get a pasteurizer (leaning heavily towards Micro Dairy Designs).  An associate of mine runs a dairy farm, and he strongly recommends seeing a piece of equipment in action before purchasing it.

Passing WSDA inspection, cost, and how floor layout would affect my process are the things I know to look for.  Is there anything else I should be looking for when looking at pasteurizers?

Also, I'd like to hear feedback from anyone with a pasteurizer in the 10-50 gallon capacity.  What do you like about your unit?  What do you dislike?  What would you do differently if you were starting over?

Thanks!
-Mitch