Check the listing for details. 4X Coffee Machines Descaling 2 Pieces General Fix. Condition: New. Listed at 29.76 USD. General Fix Ecologico - ecological descaler for coffee machines and espresso machines. Ideal for perfect and complete cleaning of any model of coffee machine or espresso machine. Limescale is a natural component of the water used to operate the device. This special descaler will protect your device from limescale buildup which affects performance and taste. and extremely effective, safe and easy to use. Instructions for use: 1. Pour the contents of a bottle into the water tank of the coffee machine, then add water (approximately 1 L). 2. Turn on the coffee machine, when the solution has become homogeneous, turn on the espresso coffee machine and extract a cup of hot water. 3. The espresso coffee machine is left closed for approximately 15 minutes, after which it is turned on and the operat.