senorkevin wrote:Where can I buy one of those?
Here is the web site, and a page for indicators. You then can choose platforms.
http://www.digisystem.com/products/category/006/Ours is about 12 years old so the model does not show on the new models, but it can handle 2 platforms without changing connectors. I could not be happier with this unit over the years, its bullet proof and very dependable. A good investment for a commercial operation. They might have a distributor in mexico.
If your boiling, you might want to think about boiling your solids in a small quantity of water, then add that back into the bulk of the water, heating and then cooling a large volume is a lot of extra work if only to get whatever benefits you think your getting from boiling the first place...in some cases its beneficial for whole spices I guess, but otherwise, why boil would be my question. But thats me now, I'm pretty old school so there might be others that are adamant about boiling.