How is an IPA beer different than an APA beer?
user
To be quite honest, this question is very difficult to answer.  An IPA might be advertised as hoppier than an APA, but that could mean a different range of hops, or different concentration, or different flavor-compounds, or the amount of sugars added.  What are you most curious about?
assistant
When was the IPA beer invented?
user
It’s pretty difficult to say when the first IPA beer was made.  A certain version of the style was most likely made in the UK and later in New England, and gradually gained popularity across the globe.
assistant
How is an IPA beer different than an APA beer?
user
To be quite honest, this question is very difficult to answer.  An IPA might be advertised as hoppier than an APA, but that could mean a different range of hops, or different concentration, or different flavor-compounds, or the amount of sugars added.  What are you most curious about?
assistant
When was the IPA beer invented?
user
There are many IPAs and APA beers being created now.  While APA beer has been around for a long time, IPAs were first developed about 100 years ago, after scientists identified some yeasts that are particularly good for making beer that tastes fruity, like some citrus fruit.
assistant
How is an IPA beer different than an APA beer?