Thanks, @Murph4231 ! That seems like a great idea. I've been kegging home brew for about 10 years now, but never done any significant aging in them.@draiinage I only keg all home brews. Kegs are available in sizes from I gal up. By far the best containers for meads, beers etc.
How long have you aged in kegs? If we're talking about a 21 year aging period I would be worried about O rings drying out, etc.