Device for unscrewing lids on jars

Device for unscrewing lids on jars

Everyone uses canned food these days. Their modern version is a glass jar closed with a twist-off tin lid. Anyone who has ever opened such canned food knows that it is not easy to do it manually. This is due to the small edges protruding from the back of the lids. They are screwed onto a jar, the neck of which is equipped with a large thread. When closing, the lid seems to be screwed into the jar.
Device for unscrewing lids on jars

This method of sealing has replaced the labor-intensive classic sealing lids. Agree that it is much simpler. After all, in order to tightly and hermetically close the jar, it is enough to turn the lid on the jar with a suitable thread until it stops. No seaming machines, everything is done by hand.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

On the other hand, not many people manage to open such a lid manually without damaging its edges. Today’s homemade product will help solve this problem - an opener for twist-off caps.

Materials, tools


For our miracle invention we will need:
  • A small piece of wooden block with a cross-section of 20x30 mm;
  • Used 3 or 5 L PET canister;
  • Wooden ice cream stick;
  • Several screws with a wide head for wood (press washer).

You need very few tools for the job - a hacksaw, a paint knife, a screwdriver, a pencil and scissors. And let’s not forget about the most important tool in the workshop – a hammer! (Where would we be without him).
Device for unscrewing lids on jars

Let's start tinkering


The main element of our opener is a wooden block. He will work with him from the very beginning. For ease of processing, the author used a vice, as shown in the photo.
Device for unscrewing lids on jars

We clamp the block in a vice and cut off a 10-12 cm fragment from it for the handle. To make the cut cleaner, it is advisable to do this with a hacksaw for metal with a fine-toothed blade.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

Next, cut one end of the finished handle at an angle of 35-45 degrees. We clean the end with a small file or needle file.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

It should turn out exactly like this.
Device for unscrewing lids on jars

From the side of the trimmed plane, mark a perpendicular line. We use a needle file as a ruler and a marker for marking.
Device for unscrewing lids on jars

We make a cut with a hacksaw to the middle of the block. If the groove is too narrow. It is necessary to flare it with the same hacksaw blade or a painting knife, and finish it with fine-grained sandpaper.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

We cut a strip from the plastic canister with a width equal to our bar. Using a painting knife, this work can be done as carefully as possible.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

It's time to use the secret weapon - an ice cream stick))
Device for unscrewing lids on jars

We use it to wedge the plastic tape inserted into the slot made with a hacksaw. We tap it lightly with a hammer for reliability, trying not to split the block. We cut off the protruding remains of the wooden stick with scissors on both sides.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

The tape can be secured with two self-tapping screws. To do this, it is necessary to make preliminary holes at the place where they are screwed in. This can be done with a 3mm drill and a screwdriver.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

Device for unscrewing lids on jars

We tighten the screws and get a ready-made advanced invention that is useful in the household. Now is the time to try it out. We wrap the twist-off lid with a loop and turn it towards the cut of the bar. And, lo and behold! The can opens with almost no effort.
Device for unscrewing lids on jars

Device for unscrewing lids on jars

I think that such a kitchen tool will be useful to every housewife, because it takes up very little space in the kitchen drawer, but the benefits are simply incredible!
Device for unscrewing lids on jars

Watch the video


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Comments (8)
  1. Victor
    #1 Victor Guests 19 February 2018 22:57
    1
    Nonsense! So much fuss! Since Soviet times, I have the largest adjustable wrench - it instantly opens any lid.
  2. Alexander
    #2 Alexander Guests March 11, 2018 11:17
    1
    Complete nonsense, in factories and even at home, housewives pour the product hot into jars and screw the lid on by hand; when it cools in the jar, the volume of the product decreases, slightly, but this is enough to press the lid tightly to the jar. Therefore, to easily open such a jar, all you need is something sharp (the tip of a knife, the tip of a fork, etc.)p.), pry the bottom lip of the lid until it clicks, thereby letting a portion of air inside the can, and your can will open with two fingers!
  3. Veronica
    #3 Veronica Guests 29 March 2018 21:57
    0
    Do not need anything. Tap the edge of the lid on the table 3-4 times and easily unscrew the lid!
  4. Guest Igor
    #4 Guest Igor Guests July 29, 2018 11:29
    0
    The author lives by the principle that our hands are not for boredom. I grumbled so much, although what was written below is absolutely correct, you just need to slightly pry the edge of the lid with a knife and it will open easily.
    1. Mark
      #5 Mark Guests 17 October 2018 09:12
      1
      You just have to throw away the lid
  5. Guest Yuri
    #6 Guest Yuri Guests 12 September 2018 10:33
    3
    The trick of prying it up with a knife and letting air in certainly works, but once it led to cracking of a glass jar, and I had to pierce the lid to balance the pressure. Therefore, the proposed idea deserves attention and will be implemented by me in the near future.
  6. Guest Dmitry
    #7 Guest Dmitry Guests 12 September 2018 19:56
    0
    In principle, a groove is not needed. Instead of a PET bottle, any scrap of not very thick belt will do.
  7. Guest Volodya
    #8 Guest Volodya Guests 26 November 2019 18:42
    0
    Cool. Old people will thank you if they receive such a product, but for all sizes of lids!