Wash, slice and pare the pineapple, and rake out all the eyes.
Prepare the tender part.
Put the core, the rind and the grated rind of the lemon in a kettle and pour on the boiling water.
Cover and simmer for half an hour.
Strain through cheese cloth.
Add sugar, tea and lemon-juice.
As some pineapples are much more sour than others, more sugar may be necessary.