Rocket candy Preparation
First, the potassium nitrate is ground or milled. It needs to be made into a powder. Then the potassium nitrate is mixed with powdered sugar in a pot. When the heat is turned on, the sugar melts. However, this method does not actually melt the potassium nitrate. Potassium nitrate needs to be very hot before it melts. Its melting temperature is 613 degrees Fahrenheit. So instead of melting, the grains of potassium nitrate are coated with the melted sugar.