system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is the difference in Bourbon and Whisky?

A friend of mine and I are drinking tonight, and trying to decide the differences between bourbon and whisky. Discuss!
gpt
Bourbon is a specific type of whisky, similar to how IPAs are a specific type of ale.

All whiskey is made from fermented grain that is then distilled and aged in barrels. There are legal requirements to be called bourbon (at least in the US). To wit:

* The grain mixture must be made using at least 51% corn

* The distilled spirit must be aged in unused charred American Oak barrels. To be called straight bourbon it must be aged for a minimum of 2 years.

* Initial distillation must be to at least 160 proof

And a few other minor requirements.