Nate M. asked Mario: "How can you determine the quality of a knife before buying?"
Mario's advice: Look into how much high carbon steel the knife has; the more carbon, the longer it will hold it's blade. Mario also advises to look at what's called the "full tang" - this is the part of the knife from the tip of the blade to the heel of the handle. This will determine what will last a long time, and give one a lot of comfort when one uses it. Watch Mario describe in the video above.