There are only two kinds of ceramic knives: made from white or black ceramic. That said a blade produced from black ceramic material is notable for high strength and wear resistance. It is clear that its price will be higher than its competitors, but made of white ceramic.
Cons of ceramic knives:
The main drawback of the material from which they are made, which is zirconium oxide as odd as it may seem is the reverse side of all the advantages of this material. The harder and more reliable is the material that accordingly it is less flexible.
Next negative point is connected with hardness of zirconium oxide too. You will not be able to sharpen the blade with your usual whetstone.
Earlier, at the beginnings of sales, ceramic sharpening has not been recommended at home. Now, when technologies moved forward, there are special diamond-coated sharpeners, which can be purchased in the store and you can sharpen the knife at home by yourself.
Ceramic knives are not very convenient to use when you decide to cut pretty large products.
Ceramic knives are not meant to chop any kind of bones, to crack nuts, or cut hard, frozen food that you have just removed from the freezer or refrigerator.
As the material from which they are made is very hard, these procedures may damage your knife. What they can cut without fear, that is any fruits, vegetables, bread, fresh (and not frozen) meat or fish, different kinds of cheese and sausages. Also it is not necessary to cut with the ceramic knife on a glass cutting board and storing it with other blades is also not recommended.
Pros of ceramic knives:
Ceramic material of the blade will never change the taste, smell or appearance of the food. What does it mean? The hardness of the blade is such that it is completely impermeable to oils, acids, juices (some of which are quite aggressive), salt, and any other ingredients that we deal with in cooking.
Ceramic blades are much sharper than usual ones. Zirconium oxide, again because of its hardness and fine crystalline structure allows the blade to sharpen the blade to the scape of microscopic precision.
If you strictly follow the rules of operation, such blades will serve you for several years without raking and scratches on their blades.
Ceramic knives are rustless, because these blades will never rust and will not change its natural state.
The blades of ceramic are twice as lighter than similar products made of other materials. This knife does not load your hand at work, which makes it possible to use it for a sufficiently large amount of time and work in the kitchen.
Comfortable and ergonomic handles are able to provide precise control over your movements. Blade perfectly fits the hand, and using it just a pleasure.
Also it is a sufficient ease of maintenance. The surface is smooth and perfectly polished, which does not allow bacteria to reproduce themselves.