Why does guacamole turn brown?

In order to keep your guacamole from turning brown, you would need to suffocate the air out of it (so to speak) to restrict exposure to air. Transfer the .... I thought I was going to be disappointed, but kept reading… then you did mention it; although, your opinion didn't agree with mine. read more

But the most common material now for plastic wrap is more porous and lets air pass through — oxidizing the guacamole and turning it brown.) This method, on the other hand, works perfectly every time and doesn't involve plastic or extra lime juice. read more

The commonly touted method of leaving the seed pit in the avocado to prevent browning does work – but only on the part of the avocado that it’s shielding from oxygen. Exposed areas of the flesh will still turn brown in time. read more

Fret not – guacamole isn’t unsafe just because it has turned brown. Your culinary creation has turned brown as part of an avocado’s normal response to being chopped up. It happens for the same reason a cut apple will turn brown. read more