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How long does a standard calcium chloride solution, say 4 oz. water and .5 oz of calcium chloride crystals, last after preparation?

I figure it's just like sodium chloride and should probably last indefinitely.

Am I wrong?

Does one need to prepare this solution fresh each time one makes cheese?

I note that it gets very warm once made, something that does not happen with sodium chloride and water, so I'm wondering if it needs to be prepared fresh each time.

Hi Fooey;
I keep my solution for as long as it lasts. I mix a 30% solution by weight. Yes, it is an exothermic reaction but that doesn't mean it has to be mixed fresh each time.
Pam

Thanks, Pam!