[header] How to zest a lime [title] Wash the lime under cool, running water. [step] Rub the limes gently with your fingers to remove grime or waxy substances, even if there is no visible dirt on the lime. Pat dry with a clean towel to clean the lime further and make it easier to grip. 
[title] Place your microplane above a cutting board at a 45-degree angle. [step] A microplane grater is a flat or curved metal kitchen tool with tiny, sharp holes across its surface.