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Hold the sharpener securely with one hand. With your other hand, rotate the selected grinding disc in the opposite direction to release it. Once removed, position the new disc onto the sharpener and twist it into place until it is firmly secured.

The time needed to sharpen a knife for the first time with the AMEL sharpener will depend on the blade’s condition and the type of steel. On average, the initial sharpening takes around five minutes. After this, resharpening is much quicker, usually just a few passes back and forth are enough.

All hardened knife steels are magnetic because of their iron and carbon content. This means that even most so-called “stainless steels” are typically magnetic. Stainless steel comes in many varieties depending on its use, some are magnetic, while others are not. For example, non-magnetic stainless steel is often used in kitchen sinks and similar products. However, this type cannot be hardened and is unsuitable for manufacturing high-performance knives.

A whetstone is used to sharpen a dull knife by grinding and reshaping the edge. It actually removes material from the blade to create a new, sharp cutting angle.

A polisher, on the other hand, doesn’t sharpen in the same way. Instead, it smooths and refines the edge after sharpening, making the knife even sharper and giving it a clean, precise finish. Think of the whetstone as the heavy work, and the polisher as the final touch.