Add 30 mil for every 230 mil of COLD water to fill the coffee maker s water reservoir. Do not overfill. Remove any disposable filters or coffee pods from the coffee maker. Place the empty carafe or cup under the coffee discharge. Initiate the brew cycle, and repeat until the reservoir is completely empty. For coffee makers with a clean cycle, initiate the clean cycle and allow the cycle to run completely. Discard the used Coffee Maker Descaler from the carafe or cup and clean the carafe or cup thoroughly. Fill the coffee maker reservoir with clean, cold water, and run another brewing cycle. Dispose of used rinse water and clean carafe or cup again. Includes: 4x Bar Keeper’s Friend Coffee Maker Descaler 355mlExtend the life of your coffee maker use BKF Coffee Maker Descaler to remove mineral scale that can ruin the heating element. Add 30 mil for every 230 mil of COLD water to fill the coffee maker s water reservoir. Do not overfill. Remove any disposable filters or coffee pods from the coffee maker. Place the empty carafe or cup under the coffee discharge. Initiate the brew cycle, and repeat until the reservoir is completely empty. For coffee makers with a clean cycle, initiate the clean cycle and allow the cycle to run completely. Discard the used Coffee Maker Descaler from the carafe or cup and clean the carafe or cup thoroughly. Fill the coffee maker reservoir with clean, cold water, and run another brewing cycle. Dispose of used rinse water and clean carafe or cup again.