From Epicurious.

Peeled potatoes can take on a kind of brownish grey pallor if they sit too long, thanks to oxidation. To prevent this from happening when you need a beat before using them, pop them in a little bath.

Still haven’t subscribed to Epicurious on YouTube? ►► http://bit.ly/epiyoutubesub

ABOUT EPICURIOUS
Browse thousands of recipes and videos from Bon Appétit, Gourmet, and more. Find inventive cooking ideas, ingredients, and restaurant menus from the world’s largest food archive.