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Global knives come out of the factory in Japan with a very sharp edge and CROMOVA 18, Globals unique blade material, ensures that this sharpness will be
maintained longer than most other knives. However, Global knives need to be sharpened from time to time to maintain their keen edge. As a general rule, the best sharpening tool for an individual is one that he or she is going to use. Each tool is different and may be easy or difficult to use depending on the individual and their level of experience or skill.
Global recommends periodically sharpening your knives using either a waterstone or ceramic stone. In between stone sharpenings, it is recommended that you use the Global fine ceramic or diamond rod to keep the edges of your knives aligned. (Global serrated knives (see Specialist Knives) do not need to be sharpened)
Waterstones & Ceramic Stones
There are various types of waterstones & ceramic stones available and normally a medium grit stone is sufficient to start with. However, if the blade is blunt or damaged, it may be necessary to start with rough grit. There are several differences between waterstones and ceramic stones. A waterstone must be placed in water and allowed to soak for 10-15 minutes to allow it to absorb sufficient moisture. A ceramic stone also requires water, but only needs to soak in water for 3-5 minutes. A ceramic stone is harder than a waterstone, so it will sharpen your knives more quickly. A ceramic stone will last longer and will not develop valleys or grooves as easily as a waterstone.
NOTE Achieving the correct angle is sometimes difficult, particular for beginners. Most Global stockists will carry a product called MinoSharp Sharpening Guide Rails which help to achieve the correct angle when using waterstones and ceramic stones.
Ceramic & Diamond Rods
The best way to sharpen any knives, not just Global is by whetstone. But for fine tuning and honing you can use Globals ceramic and diamond steels. Some do prefer to do full sharpening with these ceramic and diamond steels, but for optimum and most consistent results Global do recommend the Minosharp Whetstones.
Water wheel sharpeners
For some people, learning the skill of intermediate sharpening with a ceramic or diamond rod is difficult. It is essential that you maintain your knives on a regular basis and it will be easier to maintain them for the long term. Most Global stockists will carry one of these easiest to use devices - a water wheel sharpener called MinoSharp and MinoSharp Plus. These are hand held ceramic sharpeners and no experience or skill is required to use them simply fill the reservoir with water and run your knife backwards and forwards a few times. The revolutionary ceramic wheels ensure the blade is sharpened at the correct angle.