I have recently taken up homebrewing as a hobby. I make small batches of beer for personal enjoyment, not for sale. 
Oh interesting. What ingredients does homebrewing use?
It's brewed with water, grains, and hops. Hops is important to add flavor and also act as a preservative. 
Interesting! How long does it take typically to make one batch?
It can take weeks, depending on how the fermentation is progressing. It's pretty cool doing something that has been around since the 6th millennium BC. People have always liked to drink! 
Where do you store a batch that is fermenting? In a fridge? In a garage? 
In the garage as it can be messy and it takes up space. My friends like to come over and try my beer. Beer is actually the third most popular drink in the world, after tea and water! 
Ohh interesting. Do you need a license to sell home brewed beer?
Homebrewing
Homebrewing is the brewing of beer, mead, and ciders on a small scale for personal, non-commercial purposes. Supplies, such as kits and fermentation tanks, can be purchased locally at specialty stores or online. Alcohol has been brewed on the domestic level since its advent, thousands of years prior to its commercial production, although its legality has varied according to local regulation. In the United States, a permit is required to distill spirits such as moonshine.
History.
Beer has been brewed domestically
additional grains help add different character to the beer so that a single extract can be used to brew several varieties of beer. A full boil is required, with hop additions at different times depending on style.
Homebrewing kits Pre-hopped malt extract.
Sometimes known as beer in a can, no-boil, and hopped wort, these beer kits contain liquid malt extract that has already been boiled with hops to introduce bitterness and flavor. Pre-hopped kits simplify the brewing process by removing the need to add hops