Product description Optimal Grinding Dose-Control Grinding Hand-Crafted Microfoam Espresso Machine 20 Bar Espresso Machine Auto MilQ Barista-Style Touchscreen Manual Tamping Manual Thermocoil Heating System Thermocoil Cold Brew Espresso Machine Learn More Espresso Machine Learn More Why water flow is too little or stops? Why is it that sometimes the temperature fails to reach the desired level? Why is there water in the drip tray?