Manufacturers of quality and expensive kitchen knives made from high-strength alloys assure that their tools retain edge sharpness for many months. But only if the owner treats it properly and takes care of the blade on time. Let us break down in detail the reasons why do razor blades get dull so quickly and what to do to avoid this issue.
For cooks and housekeepers, a knife is a professional tool without which it is impossible to work with food, prepare meals and serve dishes. The sharpness of the blade edge is directly related to how the owner uses it.
If you follow a few simple rules, the knife will not get dull for a long time, even if you use it often.
You should only cut meat, chop vegetables, slice bread or sausages on a kitchen board. Countertops are usually made of hard material and will quickly make dull your blades.
Wooden or plastic cutting boards have minimal impact on the sharpness of the edge. Boards made of glass, metal, ceramic or stone play the role of decorative accessories. They look beautiful in the interior, but cause the cutting edge to wear out quickly.
You should never put a dirty knife in the dish sink, and even more so — leave it in water for a long period of time. Even if you need to clean up any stuck-on food residue.
There are several reasons for this:
Experts recommend to wash the knife immediately after using it. Especially after cutting products containing acids (tomatoes, lemons, apples). Otherwise, the acids will leave stains on the metal. The edge will also slowly lose its original condition.
To remove food residue and juice, rinse the knife with warm running water and use a sponge. You can add some detergent to get rid of grease. Abrasive substances, including baking soda, are not appropriate.
After cleaning, there should be no moisture left on the blade. The blade and handle should be dried thoroughly using a towel or a cloth. This will protect the product from corrosion, which leads to rapid edge dulling.
To keep your blades sharp, it is important not to use the dishwasher to wash the tool. In the dishwasher, the knife can heat up to a high temperature, causing the metal to lose its properties and deform. Besides, in the dishwasher the sharp cutting edge comes in contact with cutlery and dishes, which also makes the edge dull.
It is designed for cutting foods of various softness. Knife manufacturers do not expect the chef in the kitchen or the chef in the restaurant to chop frozen meat or hard bones.
Although steel is strong, it is quite brittle. Contact with frozen foods or hard materials can cause pieces of the blade to chip off the edge and the blade itself can break.
It is not just nasty, it is dangerous. Metal debris along with food particles enter the digestive system and cause harm to people's health.
One of the main reasons for more rapid loss of knife sharpness is improper use while chopping food. Do not make chopping motions and sharply bring the knife down to the surface.
You should gently move the knife back and forth without pulling it completely off the cutting board. This way the cutting edge will slide along it. It is better to use the back (unsharpened) side of the tool to shake off chopped vegetables or fruits.
While cooking, some cooks use blades to assess the readiness of vegetables in boiling water, stir soups and broths. This has a negative effect on the sharpness of knife blades.
In such conditions, the metal undergoes severe temperature fluctuations. They can partially change the properties of the alloy and deform the blade. The only exception is knives made of ceramic.
A chef's armory should include tools for various types of work in the kitchen - peeling and cutting vegetables, cutting meat or fish, slicing bread, etc. Each type of knife is designed for a specific product or group of products.
For example, hard steel blades with tungsten and/or molybdenum additives are the best for cutting meat and separating it from the bones. Such knives are quite strong and retain the edge sharpness for a long time. But it is difficult to restore their sharpness.
Soft steel knives are great for chopping vegetables and slicing food before serving. If you use them for cutting meat, the tool will dull quickly and its cutting edge will lose shape.
The sharpness of blades is directly related to proper sharpening. Specialists recommend sharpening approximately 1-2 times a year. However, between complete sharpenings, you should hone the edge as often as possible using a sharpening rod. Keep in mind that the sharper the tool, the more convenient and safer it is to use it.
During the process of restoring sharpness, it is important to maintain the same angle of the edge. It depends on the purpose of the knife.
The most common mistake home cooks and chefs often make is improper storage of knives. This causes the blade to rust and become dull quickly. You should not put them in drawers with other utensils. The edge loses its sharpness when it comes into contact with hard objects.
You can store sharp knives in the following storage solutions:
It is not recommended to store knives in sheaths or scabbards all the time. These accessories make the knife look pretty, but they cause damage to the blade. The trouble is that the moisture on a knife surface does not evaporate into the air, and causes corrosion of the carbon steel. As a result, the edge gets covered with barely visible rust, which reduces the sharpness.
After washing, the knife should be left to air dry or in a drawer where its blade will get some ventilation.
To prevent the knife from dulling quickly, you should choose a high-quality tool at the purchase stage. The most important thing is to pay attention to the characteristics of the blade cutting edge. A good blade is made of solid steel with additional additives which protect it from corrosion. A steel like that cannot come cheap.
Inexpensive knives from hardware stores are made of stainless steel. It resists oxidation well and has an affordable cost. But the cutting edge of such an alloy is too soft and will deform upon contact with a hard object. This causes the knife to become dull quickly.
High carbon steel is used to make expensive tools. To prevent corrosion, they add vanadium and molybdenum in high carbon steel. Such knives stay sharp much longer.
Damascus steel knives are considered the most expensive. It consists of several alloys of different hardnesses. This results in the right balance, making the blade flexible and durable, yet razor sharp and hard.
A quality high-carbon alloy knife will stay sharp for a long time if you follow the simple rules listed above. But you will have to sharpen it sooner or later. It is important not to ruin the cutting edge with improper sharpening tools. Special stones with different grit are the best way for this purpose, as well as professional sharpeners which allow you to set and control the sharpening angle.
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