Before zesting a lemon, orange, or other citrus fruit, you should first wash the fruit with a scrubby soaked with warm water and dish washing detergent to remove any sprayed on preservative coating. Then dry the fruit completely.
1. Cutting off the protruding ends on the fruit makes it easier to zest.
2. Zesting with a microplane is the best method for shaving off finely grated shavings of just the fruit’s outer peel.
Avoid zesting the pith (the white flesh between the peel and the fruit ), which is very bitter.
3. With the protruded ends removed, you also can extract more juice.