It is very common to vacuum-pack rice with vacuum packing machine. Vacuum-packed rice is smaller in size and has a longer shelf life, and is generally packaged with automatic vacuum packing machine. There are three main ways to pack rice.
The common way is directly put it into the packaging machine for packaging, or make a mold and pack it into the form of rice bricks. A vacuum packaging machine with an inflatable function can also inflatable packaging for rice.
Vacuum-packed rice can be stored for about a year to a year and a half without opening the bag or leaking air, and it can only be stored for three months when the bag is opened or leaking. Let’s learn more about it together.
Rice vacuum packaging machine is a kind of food vacuum packaging machinery. It is mainly used for packaging rice. Vacuum-packed rice occupies less floor space, has a longer shelf life and is more beautiful in appearance. Therefore, when buying rice, many are vacuum-packed. There are three main ways to package rice in vacuum packaging machines:
- Ordinary vacuum packaging
That is, the rice is directly put into the rice vacuum packaging machine for vacuuming operation. The finished product is the vacuum-packed rice. This method is relatively common, but the packaging volume is relatively small, and the packaging doesn’t come out beautiful enough.
Rice brick vacuum packaging
This vacuum packaging method is to make acrylic molds before packaging. At the same time, the bags for packaging products also need special treatment to make cube packaging bags, and then put them into the rice vacuum packaging machine for packaging. The rice that comes out is like a brick, which is more beautiful.
- Inflatable packaging
This method requires the rice vacuum packaging machine with an inflatable function, and carbon dioxide and nitrogen are filled during vacuum packaging. Because rice has the ability to absorb carbon dioxide, it can form a protective layer, so that the fatty acids, total acid, reduction of the rice sugar and viscosity change becomes smaller so that to prolong the shelf life; nitrogen can reduce the oxygen concentration in the vacuum packaging, inhibit the growth of microorganisms in the rice, and can maintain the quality of the rice and prevent the rice from mildew and insects.
How long can rice be kept in vacuum packaging?
The vacuum packaging machine can prolong the quality time of the rice, so how long can the vacuum-packaged rice be stored?
Generally speaking, the state stipulates that the shelf life of vacuum-packed rice is 18 months. Depending on the processing method and vacuum packaging method, the shelf life of vacuum-packed rice purchased on the market may be 12 months or 18 months, but it should be noted that, the time here is calculated from the production date displayed on the outer packaging, and it is unopened and air-tight; if the bag has been opened or there is air leakage, the rice is no longer in a vacuum-packed state , the shelf life will also be greatly reduced, generally three months or so may expire and deteriorate.
