Originally Posted by
gfunkdave
Just store it by pressing a piece of saran wrap down onto the guac in the bowl. Press out all the air so the plastic touches the entire surface. It won't turn nearly as brown.
another option is to put a very thin layer of mayo on top of the smoothed over guac and then just stir it in the next day. The mayo doesn't change the taste other than to brighten up & freshen the flavor. I hate to waste food so I would never dump out guac because of the color. Just mix it in with scrambled eggs or an omelette.