system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does apple juice not have to be refrigerated before opening, but orange juice does?
gpt
If your juice needs refrigerated it was not pasteurized. If it is shelf stable it was pasteurized. Pasteurization can affect taste so perhaps pure orange juice is generally not pasteurized, but Sunny D is (tbf Sunny D has very little juice in it).