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I am thinking about aging a bottle of all grain for a long period of time and gift it to my son when he becomes of age. Any suggestions on how long oak cubes can sit in glass bottle if I want to seal it? Also how many cubes to use to not destroy flavoring

I’m new to the hobby and want to learn a lot. I ran my first run just the other day and definitely have things to improve upon obviously. From still set up to equipment, already making the adjustment. But I did end with an eight 16 ounce bottles of 64-80 proof. So as you can see the help is needed m...