- ใส่น้ำให้มีปริมาณแต่พอสมควร
                                                                                                                                                                                                                                                             - ปิดฝาให้สนิทก่อนต้ม
                                                                                                                                                                                                                                                            - ปิดสวิตซ์ทันทีเมื่อน้ำเดือด