If you really want to be sure that your products are perfectly cooked, use the Big Green Egg Wireless Mobile Thermometer. With this thermometer you measure to the degree accurately which core temperature is the inside of your piece of meat. Insert the needles of the transmitter into the product and read the data on your wireless receiver. If you have set a temperature and your product has reached it, think of 60 degrees for a medium grilled steak, then the receiver gives a signal. The needle can withstand temperatures up to 380 degrees.