What should I do if the can't be opened? 20 seconds
Most people like to eat sweet and sour cans, but opening cans can take some effort. What should I do if the glass bottle cap can't be opened? For a long time, everyone has summed up their own tips for opening cans. Some people say that they can open the bottle cap with a screwdriver, some people say that they can stand upside down and pat the bottom of the bottle with their palms... So which method of opening cans saves time and is safe? The reporter told you the most time-saving and labor-saving skills for opening cans through experiments.
The purpose of the experiment: to find out which of the five ways to open the can is time-saving and safe.
Experimental supplies: 5 bottles of canned orange in sugar water, 1 screwdriver, 1 lighter, 1 bowl with hot water, and 1 towel.
Experimental preparation: 5 bottles of canned fruit with a net content of 256 grams. In order to ensure the accuracy of the experiment, try to twist the canned bottles with all your strength when purchasing to ensure that each bottle is well sealed. Place 6 bottles of canned food in a cool and dry place in a room temperature of 22 ° C.
5 major experiments on opening glass bottle cans and bottle caps were carried out
Experiment 1 of opening a can: I almost poked my hand with a screwdriver
First, use the method of prying the bottle cap, pick up a screwdriver and pry the can cap. After prying it hard a few times, I heard the glass at the mouth of the bottle make a "hiss" breaking sound, and the screwdriver slipped and almost poked my hand. Stop prying, then twist the bottle cap hard, but it doesn't open.
Then a second pry was carried out, this time changing 3 prying points, until a "bang" was heard, and the can seemed to breathe a sigh of relief.
Twist the cap again, and this time it unscrewed without much effort. The whole process took 50 seconds.
Experiment experience: During the prying process, the screwdriver focuses very little on the mouth of the bottle, making it difficult to use some force. In addition, the screwdriver is easy to slip and accidentally poke the hand.
Canned experiment 2: Pat the bottom of the bottle hard and suffer time-consuming
Then, I tried the "pat the bottom of the bottle" method. The can bottle stood upside down, and I patted the bottom of the bottle with the whole palm of my hand for 3 times, and then twisted the cap hard, but it didn't open several times. Then I patted the bottom of the bottle and twisted the cap, and repeated this for 3 times before the reporter opened the cap. The whole process took 1 minute and 20 seconds.
Experiment experience: When patting the bottom of the bottle, the palm hurts very much. Generally, women with relatively small hand strength are not suitable for opening canned bottles with this method.
Can opening experiment 3: Soak in hot water for 20 seconds and it will be easy to do
The principle of "prying the mouth of the bottle" and "patting the bottom of the bottle" is to "deflate" the can bottle. Next, I will try to open the cap using the principle of "thermal expansion and contraction". Place the can upside down in a bowl of hot water so that the water submerges the entire cap.
The clock starts. After 20 seconds, take out the can, dry the water on the bottle cap, and easily open the bottle cap with a little effort.
Experiment experience: This method is very easy and awesome. It saves time because it requires bowls and hot water, which is suitable for use at home.
Canned experiment 4: Open flame roasting bottle cap operation is dangerous
Also using the principle of "thermal expansion and contraction", if there is no hot water and utensils to hold hot water around, some people think of using a lighter to heat the bottle cap. As soon as the lighter is close to the bottle, the bottle will emit a "swoosh" burning sound. Use a lighter to heat the bottle cap evenly. After about ten seconds, put a towel on and twist the bottle cap, but it failed a few times. Then, repeat the above process and heat it evenly with a lighter for more than 30 seconds. This time it was successful. The whole process took 1 minute and 12 seconds.
Experiment experience: It is easy to burn your hands when baking the bottle cap with fire, which is more dangerous. In addition, it is also inconvenient to put a towel on the pad when twisting.
Canned experiment 5: The bottle cap is easily broken when it hits the ground
In the absence of any tools, in addition to patting the bottom of the bottle with the palm of your hand, there is another way to use, that is to knock the bottle cap on a hard surface a few times to achieve the purpose of "deflating" the bottle.
The reporter took the can bottle and knocked it lightly on the floor tiles. After the knock, he twisted the bottle cap by hand, but it was unsuccessful. Then, the reporter increased the intensity and knocked a few more times. After the knock, he twisted the bottle cap, and repeated it 3 times before opening the bottle cap, which took 1 minute.
Experiment experience: It is necessary to grasp the strength when knocking, otherwise it is easy to break the glass at the mouth of the bottle.
The experimental conclusion of opening cans
In comparison, the method of hot water soaking is the safest, easiest and most time-saving; prying with a screwdriver is also faster, but it is dangerous, so it is not recommended to use a screwdriver to pry open cans.
