This is the best ever Entkalker, I've ever had. With vinegar or citric acid based products that I've used, I could not achieve comparable results. Because there is no dosing instructions, I first price conscious mixed only 2 large splashes of descaling agent with about 1 liter of water to descale the kettle. Did it then about 30 minutes. Leave on and the result was 1 A! Coffee was also decalcified perfectly with little decalcifier. My tip therefore: First try at a lower dosage, is sufficient in most cases :-)
