What is the problem?

[Mutno]

My APA tasted good after 2 weeks, but after 3 weeks beer changed color and taste stale. Could be oxidation? And why did it appear after 3 weeks?

 

[Yooper]

Yes, it definitely sounds like oxidation. The color change (darker I assume) and stale taste are telltale signs. It may have happened during packaging if the beer was exposed to oxygen or splashed when transferring.

 

[Ozarks Mountain Brewery]

sounds like oxidation, I've had that happen

 

[Mutno]

Is there a way to fix it? Will aging change anything?

 

[Ozarks Mountain Brewery]

while the beer is young yes but now I'm afraid not sorry

 

[Yooper]

Unfortunately, with age, oxidation will get worse. Drink them fast if they are still palatable.