use this code:
After close the lid, press the button in the center of the lid downward to pump the air inside the canister. After about 15-20 presses, most of the air will be extracted from the canister, so that the water and oxygen will be reduced, thus achieving the purpose of preservation of freshness. That's why I choose vacuum canisters for things which I plan to keep for a long time! Open every day, there will be new oxygen, moisture run into the canister, and after remove some of these things that will make our food spoiled through and then pumped out, in our research, the vacuum canister will be very sense for this type of preservation effect. Factors that make things spoil: 1. ultraviolet rays in the light 2. oxygen in the air 3. moisture using a vacuum storage canister up and down by pressing the button on the top of the lid can be pumped out of the box of air to isolate the food and air contact antioxidant, anti-moisture prolong the freshness period of 4-6 times. Like coffee beans, nuts will change the taste after a long time, and even nuts will produce oil consumption flavor when they are spoiled, the reason is almost due to oxidation, and the vacuum box can effectively control the speed of oxidation for this situation.
From a scientific point of view, vacuum is absolutely positive for the preservation of extend the food fresh period。
The vacuum situation reduce the key factors for food spoilage “oxygen”
Vacuum packaging is easily for general public understanding, actually vacuum packaging is an “oxygen reduce packaging method”It’s not a complete absence of oxygen, it’s a reduction in the proportion of oxygen present. According to an article of Food Science and Technology, after 24 months of controlled experiments, compare to the sack packaged peppers, the vacuum packaged pepper has excellent and positive preservation performance on the freshness、moisture 、mildew.