The most efficient layout of casks having 125 total. Note: this requires 2,500 wood and 125 hardwood.
"You can use a Cellar to age certain items" -Robin
Obtaining Cellar[]
After you have built your room and a nursery, Robin will give you the option to build a cellar for 100,000 gold. She tells you it takes 3 days to build. Once built, you will see a set of stairs leading down to said room.
Using the Cellar[]
This 125 layout makes it easier to add/remove items from the barrels since game mechanics favors north/south orientation.
The Cellar can be used to age juices, wines , and cheeses. There are 33 barrels in total (3 rows, 11 columns) which you can use to do this. When you get to the first step in the aging process, you will see a silver star on the barrel you placed your juice/wine/cheeses in. As you put your items in, they will alternate between silver, gold, then purple star.