Can't open your canned fruit? These amazing skills will turn you into a can-opening master!

Sealed by a can? Those embarrassing moments when you can't open a can

My friends, have you ever experienced this desperate moment: excitedly bought a bottle of fruit canned food, imagining the sweet fruit and rich juice, but was blocked by the tightly sealed lid “Blocked”? I believe many friends have similar experiences. That feeling of wanting to eat but not being able to is so tormenting! Don't worry, today I will share with you a few simple tricks to easily open fruit cans, so that you can say goodbye to the embarrassment of not being able to open cans!

Cans are difficult to open “Secret”

Why are can lids so difficult to open? In fact, there is scientific reason behind this. During the production of canned food, it undergoes high-temperature sterilization to eliminate bacteria and microorganisms inside, and then quickly sealed. This sealing is quite particular! Some of the air in the can is heated and expands and escapes, and after cooling, the volume of the gas inside shrinks, forming a negative pressure environment, that is, the internal air pressure is lower than the external pressure.

In the environment we live in, atmospheric pressure always exists. The external atmospheric pressure is like an invisible hand, firmly pressing the can lid onto the bottle mouth. This is why when we twist the can lid, we feel that it is firmly locked, and no matter how hard we try, we can't open it. It turns out that it's all the atmospheric pressure “Playing tricks”! Understanding this principle, we can “treat the symptoms”, using some clever methods to overcome it!

Opening Lid Skills Revealed

Physics “Violent” Method

Opening a can by hand: With just a little effort, you can easily achieve can-opening freedom, and you can open cans anytime, anywhere. Operating method: 1. Cross your fingers and hold the can lid. 2. Squeeze hard until you hear a “bang”. 3. Rotate the can lid.

Hitting the bottom of the bottle ： This is the most common “Violent” method, simple and effective. First, hold the can firmly, with the bottom facing you, and use the palm of your other hand to hit the bottom of the bottle hard, about four or five times. The principle here is that hitting the bottom of the bottle can cause the liquid in the can to oscillate, and the dissolved gas will escape, increasing the pressure in the can. Once the negative pressure is reduced, the lid will be much easier to twist. However, be careful when hitting, don't use too much force, otherwise the bottle is easy to break, and if you don't get to eat the canned food, you have to clean up a mess of glass shards, which would be counterproductive!

Piercing the bottle cap ： If you have something sharp at home, such as a knife or scissors, you can try this method. Place the can firmly and use a knife or scissors to pierce a small hole in the edge of the lid. Be gentle, don't hurt your hand. After piercing the hole, you will hear a “hiss”, which is the gas escaping. Once the internal and external air pressure is balanced, twisting the lid will be much easier. However, be careful, after piercing the hole, the edge of the lid may be a little sharp, be careful not to cut your hand when picking it up.

Magical Auxiliary Tool Method

Cling film assistance method ： Don't underestimate this thin cling film, it is a small helper for opening cans. First, take a piece of cling film, fold it two or three times to make it thicker and increase the friction. Then cover the folded cling film on the lid, hold it tightly with your hand, and then twist the lid. The friction between the cling film, hand, and lid increases, making it less likely to slip, and the lid can be easily twisted open. This method is especially suitable for girls and children with little strength, simple and safe. However, if the can is too large and your hand cannot completely grasp it, this method may not be so effective.

Rubber band magic circle ： Find a few rubber bands and wrap them around the lid, wrapping them several times to make the rubber bands tightly clamped on it. The rubber band surface has texture, which can greatly increase the friction, like adding a “booster” between the hand and the lid. Wearing rubber gloves is the same principle, the material of the gloves allows you to grip more firmly. In this way, when you twist the lid, it feels much easier, and the lid that was originally slippery and difficult to grip can now be obediently opened.

Kitchen paper towel cleverly used ： Common kitchen paper towels can also be used. Take a paper towel, fold it several times, and then wrap it around the lid. The rough surface of the paper towel can increase the friction between the hand and the lid, making you more stable and forceful when twisting the lid. This method is very convenient, the materials are readily available, and even if you don't have cling film and rubber bands at home, you can easily solve it.

Thermal expansion and contraction magic

Hot water immersion method ： Prepare a basin of hot water, the temperature should not be too hot, don't scald yourself. Turn the can upside down, so that the lid is immersed in hot water, soak for 1-2 minutes. Due to the principle of thermal expansion and contraction, the iron lid will expand when heated, while the glass bottle will not expand so much, so a gap will appear between the lid and the bottle, air will enter, the negative pressure will be broken, and it will be much easier to twist the lid. When taking it out after soaking, remember to wipe it dry with a towel, otherwise it will be difficult to twist if your hands are slippery.

Hair dryer heating method ： If you have a hair dryer at home, you can also use it to help. Turn the hair dryer to the hot air setting, and keep it at a distance of 10-15 centimeters from the lid, and blow it evenly, making sure to blow every part, for 1-2 minutes. This also uses thermal expansion and contraction to make the lid expand and loosen when heated. However, when using a hair dryer, be careful not to blow on one place for too long, otherwise the lid may be deformed, and after blowing, wait for the lid to cool slightly before twisting, otherwise you may burn your hand.

Be Prepared: Recommended Can Opening Tools

If you've tried all the methods above and still find it difficult, you might consider professional can opening tools; they are real "heavy hitters" when it comes to opening cans, easily solving your problems! “Heavy Hitter” for Opening Cans

Professional Can Opener ： This type of can opener is specifically designed for opening cans and comes in manual and electric versions. Manual ones generally use gear engagement; turning the handle easily cuts the can lid. They are simple to operate and affordable, perfectly suitable for ordinary households. Electric can openers are even more convenient; plug it in or insert batteries, place the can, press the switch, and it automatically opens the lid. This is especially suitable for the elderly and children, although they are relatively more expensive. When using a can opener, be sure to place the can securely, follow the instructions, and pay attention to safety to avoid injuring yourself with the blade.

Easily Enjoy Delicious Canned Fruits

After seeing so many opening methods, don't you think opening cans is no longer a difficult task? Each method has its own advantages, whether at home or outdoors during picnics and gatherings; there's always a way to help you open a can. Give them a try, and you'll no longer have to drool over unopened cans!