Do you just throw them in the trash? Brave of you to crack one open LOL! The instructions said to leave the vent plugs in until they start hatching. Is that wrong? Also how in the heck do you calibrate a glass probe thermometer? It said how in the paperwork, but it doesn't make sense. I was afraid to break it trying to "slide" it in the metal holders. Man I feel like such a rookie right now. Thanks for holding my hand through this. HA! I plugged it in, and put the thermometer in on top of the egg turner. I am testing the temp. I plan on putting the 9 silkie eggs that are currently in the coop, in the incubator tomorrow.