How to Descale Your Coffee Maker

1Check Manufacturer Guidelines

Caution: Using vinegar may damage internal components or void your warranty if prohibited by the manufacturer.

Review your coffee maker manual before starting ¹. Many modern manufacturers explicitly warn against using vinegar, as its acidity can degrade rubber seals and internal components, potentially voiding your warranty ¹⁶. Using a manufacturer-approved descaling solution or citric acid is the recommended best practice to ensure machine longevity ¹.

2Prepare the Machine

Empty the carafe completely ². Remove all coffee grounds, paper filters, and permanent filters from the basket ²¹⁶.

3Mix the Descaling Solution

If using vinegar, ensure it is plain white distilled vinegar only. Never use apple cider, flavored vinegars, or lemon juice. For standard drip machines, combine one part vinegar with one part water ³¹⁸. For specialized machines like espresso makers, use a more diluted ratio, such as one part vinegar to three parts water, to protect internal seals.

Standard Drip: 1:1 (Vinegar:Water)
Espresso/Specialty: 1:3 (Vinegar:Water)

4Run the Cleaning Cycle

Start a partial brew cycle to pull the solution into the internal components ¹⁴. Turn the machine off and let it sit for 30 to 60 minutes to dissolve mineral deposits ¹⁹.

5Complete and Rinse

Turn the machine back on to finish the brew cycle ¹⁶. Discard the vinegar solution ¹⁸. Run at least two to three full cycles using only fresh, plain water to remove any lingering taste or odor ¹⁴¹⁹.