is 2.70g/cm^3, what is the thickness of the foil in mm?
If it is an older model then you might see some interesting fireworks and get to meet your local fire departmentI believe that it is safe to use smaller pieces of foil in newer models
Never put any metal in a microwave! It could start a fire, or burn out the tube.
mass areathicknessdensity 345g 75ft^2 thickness 2.70g/cm^3 convert ft to cm 345g 75(30.48)^2cm^2 thickness 2.70g/cm^3 u get thickness 0.00183 cm 0.0183 mm