Empty and rinse the carafe and filter basket first
Start by unplugging the machine and letting it cool completely. Remove the carafe and filter basket — these are the easiest parts to clean and should come out without tools. Rinse both under warm running water and scrub with a soft brush or sponge to remove old coffee grounds and residue. Pay attention to the corners of the filter basket where grounds collect.
If the carafe has stubborn stains inside, fill it halfway with warm water and add a tablespoon of baking soda or white vinegar. Let it sit for 15 minutes, then scrub the interior with a bottle brush or cloth. Rinse thoroughly until the water runs clear and there is no vinegar smell.
Key Takeaways
- Run a vinegar and water mixture through the brew cycle once a month to dissolve mineral buildup inside the machine.
- Use equal parts white vinegar and water, fill the reservoir, and run it as if you were making coffee — stop halfway through and let it sit for 15 minutes.
- After the vinegar cycle, run two full cycles of plain water through the machine to rinse out all vinegar taste and smell.
- Clean the carafe and filter basket by hand after every use to prevent mold and staining.
Run a vinegar cycle to clean the internal tubes and heating element
The inside of the machine — the tubes, heating element, and water reservoir — collects mineral deposits and old coffee oils that affect taste and performance. The easiest way to clean these parts is to run a vinegar solution through the brew cycle.
Fill the water reservoir with equal parts white vinegar and water. Place an empty carafe on the warming plate and run the machine as if you were making coffee. After about half the mixture has dripped through, turn off the machine and let it sit for 15 minutes. This pause allows the vinegar to soak the heating element and internal passages. Then turn the machine back on and let the rest of the vinegar solution brew through.
The vinegar smell will be strong. This is normal and means the solution is working. Do not skip this step or rush it — mineral buildup reduces heat efficiency and can eventually clog the machine.
Rinse the machine twice with plain water
After the vinegar cycle finishes, empty the carafe. Fill the reservoir with fresh water only — no vinegar — and run a full brew cycle. Discard the water that comes out. Repeat this a second time with a fresh reservoir of plain water.
Two rinse cycles remove the vinegar taste and smell from the internal passages. If you skip this step or do only one rinse, your next pot of coffee will taste like vinegar. Some machines with larger reservoirs may need a third rinse cycle, especially if the vinegar smell lingers after the second one.
Clean the spray head or shower head if your machine has one
Many drip coffee makers have a small perforated piece at the top of the brew basket called a spray head or shower head. This part distributes water evenly over the grounds. Mineral deposits can clog the small holes and cause uneven brewing.
If your machine allows you to remove this piece, take it out and soak it in a cup of white vinegar for 30 minutes. Use a toothpick or thin needle to gently clear any blocked holes. Rinse it thoroughly under running water and replace it. If the spray head is not removable, the vinegar cycle you already ran will help dissolve deposits, though it may not clear severe clogs completely.
Wipe down the exterior and warming plate
While the machine is still unplugged and cool, wipe the outside with a damp cloth to remove dust and dried coffee splatters. Pay special attention to the warming plate at the bottom — dried coffee and mineral deposits can build up there and affect heat distribution.
Use a cloth slightly dampened with water or a 50/50 vinegar-water mixture. Do not pour liquid directly onto the machine or let water drip into electrical components. If the warming plate has stubborn stains, let a damp cloth sit on it for a few minutes before wiping.
How often to clean and what to do between cleanings
Run the vinegar cycle once a month if you use your coffee maker daily, or every two months if you use it a few times a week. The frequency depends on your water hardness — if you have hard water with high mineral content, monthly cleaning prevents buildup that can slow brewing or reduce heat.
Between deep cleanings, rinse the carafe and filter basket after every use and empty the water reservoir if the machine will sit unused for more than a few days. Stale water left in the reservoir can grow mold or bacteria, which affects the taste of your coffee and can damage the machine over time.
Frequently Asked Questions
Can I use something other than vinegar to clean the inside?
White vinegar is the most common choice because it is cheap and dissolves mineral deposits effectively. Commercial coffee maker cleaning solutions work similarly but cost more. Avoid bleach or harsh chemicals — they can damage internal seals and leave toxic residue. Baking soda mixed with water works for light cleaning but is less effective on mineral buildup than vinegar.
What if vinegar smell stays after rinsing twice?
Run a third cycle of plain water through the machine. If the smell persists, fill the reservoir with water and a tablespoon of lemon juice, then run one more brew cycle. Lemon juice can help neutralize lingering vinegar odor. Always let the machine cool and air out for an hour after cleaning before brewing coffee.
Is it safe to drink coffee made right after cleaning?
No. Always run at least two full cycles of plain water through the machine after the vinegar cycle before making coffee you plan to drink. Even small amounts of vinegar left inside will make your coffee taste sour. If you accidentally brew coffee too soon, discard it and run another water cycle.
What happens if I never clean the inside of my coffee maker?
Mineral buildup will slow the brewing process and reduce the temperature of the water, which affects extraction and taste. Over time, clogs can prevent water from flowing through the machine at all. The heating element may work harder and fail sooner. Mold can grow in the water reservoir if it sits unused, creating health risks.