AWasteofCoffee Espresso (95 TDS)
🧪 Concentrate recipe
MgSO4 (Epsom Salt)- 7.39g/300ml
NaHCO3 (Sodium Bicarb)- 5.03g/300ml
🥛 Per liter brew water
MgSO4 (Epsom Salt)- 5.5ml (55 ppm)
NaHCO3 (Sodium Bicarb)- 3.5ml (35 ppm)
The concentrates above are added to my Coway R.O. water which has a very low TDS of 3.5 ppm. I choose to use this recipe as it seems to be a good balance - not too low TDS to corrode the boiler while at the same time not too high to scale.