Okay little one, have you ever heard of choujiu? Choujiu is a type of Chinese rice wine that is made by fermenting rice. Do you know what fermentation means? It's when tiny living things called yeast eat up the sugars in the rice, and when they do that, they release a gas called carbon dioxide.
The carbon dioxide makes little bubbles that make the rice wine a little fizzy. It's kinda like when you put Mentos candy in Coca-Cola and it fizzes up.
Now, choujiu also gets its special taste from something called koji. Koji is a special mold that is grown on the rice before the fermentation process starts. It sort of looks like white fuzz, but it's not bad for you. It helps break down the rice and create a sweet flavor in the wine.
Once the fermentation process is done, the choujiu is often put in a big jar and left to age for a while. Aging means just letting it sit there and get more flavorful over time.
When you're grown-up one day, you might be able to try choujiu if you're interested in trying new things. But for now, just remember that it's a fizzy rice wine made by little living things and special mold.