Many people know that the presence of air in the environment where products are located significantly reduces their shelf life. This is due to the fact that air has a beneficial effect on the proliferation of harmful bacteria. Moreover, it itself contains many organisms from bacteria to fungi. Experiments have been carried out many times, which clearly show that in an airless space the product retains its freshness much longer.
The article will describe the technology for manufacturing a simple vacuum pump from parts available to absolutely everyone. With such a simple pump it will be possible to pump out air from the packaging.
Will need
- Spare parts packages for packaging products.
- A disposable syringe of any volume, but the larger it is, the easier and faster the work of removing air will be.
- 2 valves.
- Silicone tube.
- Tee.
All these parts can be bought at the pharmacy - in droppers. Or in aquarium fish stores.
Making a hand vacuum pump
Cut three pieces of tube of the same length.
We connect them with a tee.
We insert valves into two of the three terminals - it doesn’t matter. The main thing is that the inlet and outlet valves are connected to the tee differently.
Connect the syringe to the remaining end.
The vacuum pump is ready. Now, if you move the syringe piston back and forth, the valves will periodically work: one will let air in and the other will let out.
We connect a piece of hose 10-20 cm long to the valve that intakes air. We cut the free end diagonally so that it does not stick to the packaging.
Vacuum packaging
We put the products in the bag. Make a hole near the lock with a toothpick.
We insert the pumping tube and glue a small piece of tape on top. Snap the bag latch. We pump out all possible air from the packaging.
Now we pull out the hose and seal the hole with the tape that was glued earlier.
Ready! Now products will be stored for a longer time and will remain fresh even at room temperature.
