Wash, then slice the turmeric and ginger into thin disks (no need to peel)
Add the turmeric, ginger, black pepper and coconut water into a blender. Blend on high speed for about a minute, until it’s a smooth mixture, if you need to you can do this in batches depending on the blender size.
Pour the mixture into a large saucepan. Bring it to a boil then reduce the heat and let simmer for around 20 minutes.
Add the lemon juice and honey, giving it a few stirs.
Carefully strain the mixture through a fine mesh sieve or muslin cloth into a large jug. Using a funnel for ease (if you have one – see notes) pour into a glass bottle and refrigerate.
I like it chilled, but can also be enjoyed warm.
Makes approximately 1.25 litres
Turmeric stains easily, I would advise wearing an apron or dark clothing, and having a towel / dishcloth on hand that you don’t mind staining.
A funnel is not essential, you can simply pour very carefully.
The high fibre content of jamu makes it a great digestive, but can have a laxative effect on some people. Start with half a glass a day.