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?
Oh, to sell it, for sure. But I don't do that. It's just for personal purposes, to enjoy myself or share with family and friends. Definitely a non-commercial operation! 
That is awesome sir/ma'am! How long does the home brewed beer last once it is finished and complete?