Vermouth for use in Drinks - can I freeze it?

Question

I have a well stocked bar at home so from time to time I mix some drinks. Many popular drinks list Vermouth (e.g. Noilly Prat) as an ingredient. Basically, Vermouth can be compared to a special kind of wine as it also produced from wine. This is where the trouble starts: As soon as you open a bottle Vermouth for the first time, you have to store it in a fridge and after 2-3 weeks have to throw the bottle away because you can't use it anymore. So to really empty the bottle, you have to drink a lot.

This is a common problem for many people and there are many ideas for solutions (spraying some protective gas into the bottle, filling many smaller bottles, sucking the air out of the bottle, writing to companies and asking for miniature bottles...) but none of them really works. Now I just had another idea: Can I just fill an ice cube form with Vermouth and put it in the freezer and then just take out the amount I need? Or will it loose it's flavor due to the freezing process?

Asked by Sven

Answer

Water freezes at 0° C (or 32° F), but ethanol freezes at -114° C, so you can guess your vermouth with freeze somewhere in between those two temperatures.

Noilly Prat is 18% ABV, or 15% alcohol by weight, which means it would freeze at around -6° C to -7° C, or 19-21° F. Your freezer may or may not be tuned to be that cold, but if not, you should be able to crank it a bit and get your Noilly Prat just frozen.

That said, I would not really recommend leaving an ice cube tray full of vermouth hanging out in your freezer. You may notice that old ice tastes funny. Even though you may not notice your freezer smelling, that's partly because the cold blocks smells. Just because you don't notice them doesn't mean the odors aren't there to ruin your Noilly Prat. I would recommend leaving them for a day until just frozen (covered if you like), and then moving them to a ziplock for long term storage.

Answered by Ray

Check more discussion of this question.