Drain syrup from pears into small bowl.
In a saucepan over medium-high heat, bring 1 cup of the reserved syrup and the sugar to boiling, stirring constantly until sugar is dissolved; remove from heat and let cool.
In a blender or food processor, add pears, 1/2 at a time; cover and pur until smooth. Add cooled pear/sugar mixture, ginger, lemon zest, and lemon juice; puree again just until smooth. Pour mixture in a flat freezer container. Freeze until partially frozen, approximately 1 to 1 1/2 hours.
Remove from freezer, place into blender or food processor; blend on medium speed until smooth and fluffy. Return to freezer container and freeze until firm, approximately 3 hours.
NOTE: Can be prepared 3 days in advance. Cover and keep frozen.
When ready to serve, remove from freezer and let stand at room temperature about 10 minutes before serving. Scoop sorbet into individual serving dishes or glasses. Garnish each serving with a dash of ground ginger, fresh mint sprig, or a sprinkling of finely chopped crystallized ginger.
Makes 6 servings.
Pear Ginger Sorbet Recipe: https://whatscookingamerica.net/desserts/peargingersorbet.htm