Bar Keepers Friend Coffee Maker Cleaner removes oily residue and build-up that can make coffee taste sour or bitter. BKF coffee maker cleaning solution is safe to use on automatic drip and single-serve coffee machines (for best results, use Bar Keepers Friend Coffee Maker Descaler after cleaning to remove scale deposits and hard water deposits from coffee makers, coffee machines, espresso machines and single-cup coffee makers). Removes coffee stains, tannins, and oils from coffee pots, thermoses and travel mugs. Use Bar Keepers Friend Coffee Maker Cleaner regularly to keep coffee tasting fresh. Read coffee maker manufacturer's recommendations for cleaning and descaling. Wear protective gloves when using BKF coffee cleaning solution. BKF coffee and espresso machine cleaner is an acidic product. Cover countertops to protect from possible spills or splashes. Wipe any spills or splashes immediately and rinse area with cold water. After using Bar Keepers Friend coffee cleaner, run the brew cycle with water-only before brewing coffee or before descaling. Bar Keepers Friend Coffee Maker Cleaner is a concentrated product; use 8 parts COLD water for every 1 part cleaner (8:1 ratio). Store product out of reach of children. Regular use of Bar Keepers Friend Coffee Maker Cleaner helps coffee makers brew fresh-tasting coffee. BKF cleaner is formulated specifically for coffee makers and espresso makers. Safe for use on Keurig, Nespresso, DeLonghi, Cuisinart, Mr. Coffee, Ninja and other name-brand coffee makers. Use on glass, ceramic and stainless steel coffee carafes. For best results, use Bar Keepers Friend Coffee Maker Descaler after cleaning, to remove mineral deposits. BKF cleaner and BKF descaler are color-coded (the coffee descaler cap is green, and the coffee maker cleaner cap is orange). Read the instructions on the bottle before using Bar Keepers Friend Coffee Maker Descaler or Bar Keepers Friend Coffee Maker Cleaner.