DIY vacuum packaging system
Well, after a certain number of experiments, we can say that work on the budget system of product evacuation has been completed.
Buy a ready-made vacuum packer a little expensive. Give 8-10 thousand rubles. For the device, which is needed not every day, but only several times a year, the toad dissuaded me. So I decided to make it myself. I will make a reservation right away - the result is not perfect. The whole process requires some skill. Sometimes a non-sealed bag has to be repacked. But it’s still cheaper than buying a ready-made packer.
In fact, you can do without a compressor (see photo 1). I think a manual vacuum pump (see photo 2) or a converted bicycle pump is quite suitable. Perhaps even a conventional vacuum cleaner or an electric pump for air mattresses will do ...
And for sealing packages I used ... a packet sealer (see photo 3)! Such things are in many large supermarkets. They seal the bags of customers' bags so that they don’t put anything there that is not necessary. I bought such a device before the crisis, with it. Got for a penny. Now, of course, it will cost more.
It remains to collect all this into a single whole. This is where some difficulties arose. Pumping out air and immediately sealing the bag is not as easy as it might seem.
I connected a hose to the compressor suction pipe. I didn’t forget about the filter (I don’t really need anything inside the compressor of rice grains or some rubbish). Attached to the hose tip from a ballpoint pen.
At first I did this: I took a package with the contents and sealed it. Then he cut off the corner of the bag, inserted the tip there and turned on the compressor. Air was sucked out of the bag, after which I sealed the corner. But this method crashed. The bag wrinkled, it was sealed crookedly and not hermetically. And for all the manipulations one pair of hands was not enough.
Therefore, instead of the tip from the handle, I made a special nozzle. It is a flattened copper pipe from one end into which a piece of tin is soldered in half and soldered from the edge. It turned out as if a very flat tube, which did not interfere with the closing of the sealer flaps. To prevent the tip from being pushed, I inserted a thin steel wire inside (see photos 4 and 5).
Now the process looks like this: a package with the contents and the inserted nozzle is inserted into the soldering iron and sealed. The seam is interrupted only at the place where the flat tip enters the bag (see photo 6).
Without taking out the bag, I turn on the compressor and pump out the air. Since the edge of the bag is still clamped in the soldering iron, it does not wrinkle. As soon as the air is evacuated (this can be seen by the way the bag stopped squeezing, and you hear how the compressor began to buzz tightly), I carefully remove the nozzle and immediately seal the bag again. It turns out hermetically and evenly. For insurance, I seal the bag again a little further from the first seam.
For demonstration, I used ground beef dried this night. I am not going to store it for a long time, so I did not put bags with silica gel and rusty nails inside). The last package was then repacked (see photo 7).
A few words about packages for packaging. Packages are not suitable for everyone, namely those designed for evacuation (see photo 8). Fortunately, you can buy it now. I buy at a company selling disposable tableware, garbage bags, shoe covers and other consumables for catering. In extreme cases, you can buy such packages over the Internet.
When choosing packages, take those that are denser. If there is no difference for soft foods, then “spiky” (long-grain rice, oats, buckwheat) can “pierce” the film. It sounds strange, but I came across this. The film of the bag stretches during evacuation, and the solid content can be damaged if it is handled carelessly (for example, if it falls onto a hard surface). And after a while the packet will “inflate”.
If everything is done correctly, then the packaging will save the products for a very long time. I have two kilogram packs of rice and buckwheat for the third year. Flat and hard as a brick. I can’t vouch for the taste, I haven’t opened it yet, but neither bugs nor mold are visible.
I apologize for the poverty and quality of the photos. The process takes all hands, and there is nothing to hold the camera!