Bring 1 liter of water to a rolling boil. Put sugar in boiling liter of water and stir until sugar is dissolved.
Remove water from stove and add all the ginger and pineapple peel. Stir.
Add liter of cold water to the pot. Let cool until mixture is lukewarm.
Pour mixture into a container large enough—this works best if it is glass.
Add yeast. Stir. Cover container but leave slightly ajar to allow for it to burp.
Leave in a dark, room temp cabinet for at least 3 days to ferment. Check everyday after the first three days. You can keep “feeding” your khemere every other day with 1 tbsp of sugar. The longer you feed it, the more it will ferment. If left longer (7-8 days) it will become alcoholic.
To serve, sieve the khemere and serve in a tall glass with ice. You can add thin wedges of the pineapple for aesthetics.