In modern life, it is difficult to imagine the absence of special tools for convenience in cooking. One of these is a can opener. This device helps out in cases when you need to have a snack, but there is no time to cook. Then you have to open canned food, but it is impossible to do this with the help of improvised means.
Since the first tin cans were invented, there have been significant difficulties in extracting useful products from them. You can open a can with a regular knife, but this procedure is not safe. You can damage not only the container, but also cut yourself.
Because of the above difficulties, people came up with the idea of inventing a special device that would significantly simplify the process of opening sealed containers. Many tests were conducted before can openers were invented.
The invention first appeared in the early nineteenth century, when society faced the acute problem of opening tin cans. It was during this period that food preservation technology was actively developing.
It was only after the number of canning producers had increased significantly that can openers were invented.
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Features and purpose of can openers
In the twentieth century, can openers first acquired the appearance that many of us already know today. Since then, the design has remained virtually unchanged. It consists of a wooden or plastic holder, as well as a metal element that performs the cutting function.
There are designs with sharp teeth at the end. This makes them universal devices for opening cans of almost any purpose.
Modern devices are multifunctional devices that help out any housewife in the kitchen. A classic can opener is significantly different from a similar device for cutting products. It has a different shape and size.
Some of the devices are equipped with additional design features that make it much easier to open a can. Among them are magnets, wheels, and handles.
Modern products are distinguished by a special design that allows to minimize the contact of the knife with the contents of the can. This allows to avoid metal particles getting into the container.
Additional information: You can find options that are designed for right-handed or left-handed people. This approach allows people with special needs to simplify the process of opening a can.
Types of Can Openers
On the modern market you can find different types of knives for opening cans, so each housewife will choose an option specifically for herself. There are several main types of devices, each of which differs in design and operating features. Depending on this, the most suitable option is selected.
Manual
These are the simplest types of devices that have been common for a long time. They are characterized by durability and long service life. They are structures with wooden handles and a metal cutting part. It, in turn, consists of two elements - for opening cans, as well as prying off lids on glass cans. This part is attached using plastic or wood. The strength and durability of the product depends on this.
The wheel design is just as simple. At the same time, it is safer than the previous version. The can is opened by rotating the cutting teeth.
Mechanical
Such devices are more complex. At the same time, their functionality allows for use in catering establishments. The principle of operation is quite simple. The sharp end pierces the lid of the can, after which it is fixed. Rotation occurs with the help of a special valve.
Additional information. Usually made of durable steel. Up to thirty different cans can be opened per day. Fixes the structure tightly on the table, which allows you to quickly open the desired container. Up to five cans can be processed per minute.
Among the special characteristics of such knives it is worth noting:
- reliable fastening and a working surface that is not subject to rust formation processes;
- sharpened blade made of high-strength steel;
- a plastic sleeve that allows to significantly reduce the force during rotational movement;
- high speed of assembly and disassembly, so there is no need to use additional equipment;
- can even be washed in the dishwasher.
Please note! This option is a great device for home use. It is especially suitable for those who often open canned goods.
Automatic
A simple and practical model that is very easy to use in practice. Batteries are used for operation. The device is installed directly near the lid, after which it is started by a special switch.
It has the following advantages:
- ease of use at home - no need to make any effort, even a beginner can handle opening it;
- safety – the opening areas remain smooth, so it is impossible to cut yourself on them, which eliminates the possibility of household injuries;
- compactness – takes up little free space;
- There is a magnetic coating that allows you to easily attach the blade to the lid without damaging the contents of the jar;
- long service life – if used correctly, the device can serve for many years.
Before using the automatic can opener, you should carefully study the operating instructions for the device. Be careful when using it. Do not allow children to get hold of the device.
Do not use a bottle opener to open a container with flammable contents. To clean the product from dirt, it is necessary to completely remove the automation.
Electrical
The product looks like a manual analogue. Many models are made in the form of a cutting wheel with a wooden holder. It is used to open a can at maximum speed. Inside there is a motor that starts the movement of the working wheel. Each model has its own operating features.
It functions on the following principle:
- with the help of the holder the opener is fixed on the lid of the jar;
- The switch activates the motor, after which the can begins to open automatically;
- removing the retainer from the can lid.
Modern manufacturers offer many different options. There are portable and tabletop models. The first option takes energy from batteries, and the second - when connected to the network. You can also find multifunctional devices that are designed to open different types of cans.
Important! Before you start opening the can, you need to carefully secure the opener with the clamp.
How to choose the best can opener?
When purchasing, you must follow some rules. Consider the following product parameters:
- the material from which the cutting part is made;
- Features of use – how easy it is to open a can using this design;
- operating principle and functionality of the product;
- dimensions of the device and its weight.
Handles made of plastic are more practical as they do not slip in the hand.
The hand-held type of construction must be securely fastened, and the surface must not have nicks or roughness. When buying an electrical product, you should pay attention to the material of execution and the type of power supply. Tabletop models must be protected from slipping, as the safety of the product directly depends on this.
How to use a can opener?
Depending on the type of product, the rules for its operation differ. Some skills are required to use it, otherwise problems may arise. Below we will consider the rules for using the main types of products.
How to open a can with a can opener?
If you have an old design of can opener, then follow this algorithm to open the can.
- Point the cutting end perpendicular to the work surface. Press the handle to push the cutting part deeper. Over time, you will learn to do this correctly. Such openers are the most common option, despite the existence of advanced designs.
- Please note that when opening, you must firmly support the can you are opening. It is recommended to use the help of another person during the learning process.
- Place the knife into the hole and begin to widen it, moving forward.
- Cut the tin can with a forward motion. Carefully go around the already cut part, as there are very sharp teeth there. Otherwise, you can get hurt.
Be careful not to touch sharp edges to avoid damaging your skin.
How to use a wheeled can opener?
Before you begin the opening process, carefully study the design of the can opener and follow the algorithm.
- Place the sharp wheel on the lid of the tin can. Align it if necessary. Secure the device with a wedge. It takes practice to learn how to do this quickly.
- Secure the wedge firmly, then begin to move along the working line. As you rotate, the lid will begin to give way and open.
- Turn the handle and move along the edge until the lid opens.
How to use an electric can opener?
To properly open a can using an electric knife, follow the instructions.
- Place the jar under the cutting wheel. Secure it firmly so that the container does not slip during the opening process.
- Start the device. Hold the can so that it does not tip over.
- There is a magnet at the end of the electric can opener that holds and lifts the lid as you open it. Reach the end of the lid. The process is complete. It won't take long.
Features of a can opener
Each type of construction requires compliance with certain maintenance rules:
- Do not use hot water for washing;
- Some models are not dishwasher safe;
- the product can be stored with other kitchen appliances;
- Any cleaning agent can be used for cleaning.
Popular models of can openers
Can opener MVQ 75020PCO
The model is attached to the table. It guarantees reliable fastening of the can during opening. It is characterized by safety and durability.
Tescoma President Can Opener
A universal device made of high-quality stainless steel. It is characterized by convenience, stylish design and ease of use.
Tupperware Can Opener
Allows you to open a can safely without sharp ends. Allows you to open a can of any diameter with minimal effort.
Can opener IKEA STEM
A revolutionary device at an affordable price. Allows you to open cans of different sizes and diameters. Even a child can open a can, thanks to the safety system.
Can opener IKEA KONSIS
The device is made of high-quality stainless steel. An indispensable device in the kitchen of any housewife.
Joseph Joseph Can-Do Can Opener
A bright and stylish new generation device. It is distinguished by its high functionality and ease of use.
A bottle opener is a must-have appliance in the kitchen. Be careful when choosing a product. Try to buy products only from trusted manufacturers.
