Our coffee machine detergent contains lauryl polyether-7, sodium lauryl polyether sulfate. It can deeply clean the inside of the coffee machine, effectively remove grease and coffee stains. Its use is simple: Pour 1/2 bottle into the tank of the machine, then fill the rest with water. Use the subtractive color setting of the machine to brew. Refill with water and cook until empty. Repeat Step 3 two more times. And it can remove the odor inside the coffee machine, so that the coffee machine will not affect the taste and aroma of the coffee when brewing coffee.