Q 】 Inside the plastic hose at the bottom of the triangle number: 1 PET: heat resistant to 65 ℃, cold tolerance to - 20℃。 HDPE # 2: it is recommended that not to recycle. PVC
3: it is best not to buy. LDPE 4: heat resistance is not strong. 5 PP: microwave oven boxes, crisper, resistance to high temperature of 120 ℃. 6 PS: heat resistance and cold resistance, but not in the micro wave
furnace. 7 PCS other classes: kettle, water cup, milk hose.