Fred CLUCK Yolk Separator Separate the yolk from the white with this yolk separator. Yolk separator is molded from heat-resistant, easy-to-clean, 100% pure silicone. It's a product that combines fun and functionality in one. Just place CLUCK over the yolk, squeeze, slowly release the pressure and watch the yolk disappear. Packaged in colorful gift box, so it's perfect for gift-giving.