I do make unfermented moonshine, but I do not advertise it or actively sell it. If someone asks I'll provide some.

• 99ql
• 2 days 10-13 hours on one drink (0.20kg)
• 2+ hours on one reed pen drink (0.008kg)

Consider, if you buy a small barrel of moonshine (45kg), that is a total of 225 full drinks (0.20kg)! It is a waste to buy that much moonshine, even at the going rate of 2s per small barrel.
I prefer to sell my moonshine in 2+ hour reed pen drinks (0.008kg) as it is more cost-effective for the player, and it eliminates waste. You may only need a max of 3 to 5 reed pen drinks (2+ hour sessions) to reach your desired skill level.

If one small barrel (45kg) of 2 day 13 hour moonshine is 2 silver, then one reed pen drink (0.008kg) is 3.5556 iron.