Why do we choose vacuum packing machine? It avoid some harmful chemical reactions if you put all kinds of food together Studie shows that the reduction of the outer pressure within the fruits or vegetables would product certain fluffy effect. Which will inforce some harmful substances spread out form the inner part. Effectively restain bacterium and keep the food 5 times fresher than normal method Hypobaric hypoxia state can effectively inhibit the growth of bacteria. The result of the bacterial culture shows that the speed of bacterial's growth could slow down 3-4 times. Under vacuum condition, it would kill most pest. Another important advantage of vacuum packing is to prevent oxidation of food. Effectively avoid metamorphism and keep the food fresh for a long time. Environmental and avoid unnecessary waste. In daily life, it always happens that we would leave some snacks behind. It couldn't preserve for a long time. Now with our vacuum packing machine, you can prolong the storage time and keep the taste as fresh as before. Package includes 1 * Manual 1 * Packing machine 15 * Free vacuum bagsDIRECTIONS FOR USE1,Carefully bag your items, and insert the opening of the bag into the vacuum chamber 2,Close the lid and buckle the hook on both sides 3,Press the indicator light Button to Automatic vacuuming and sealing process(not the green seal button,it is only for sealing), 4,Please put your hands slightly on top of both sides of the lid during the vacuum-sealing process