Dull knives are a drag. Not having a knife sharpener is an even bigger drag. This chemistry life hack is going to have you going straight MacGyver up on that lame point of yours. Be sure to check it out our other Kitchen Chemistry Hacks at: http://bit.ly/kitchenchemhacks and Jeff Potter's book, Cooking for Geeks for more interesting kitchen hacks: http://www.cookingforgeeks.com.
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