How to Clean and Descale a Coffee Maker
Coffee makers are among the most neglected appliances in a Toronto kitchen. The warm, moist environment inside is ideal for mould and bacteria growth, and mineral deposits from Toronto's water gradually clog the heating element and reduce efficiency. Regular cleaning takes 30 minutes and makes a noticeable difference in taste.
Why It Matters
Studies have found that coffee maker reservoirs harbour significant bacterial and mould growth when not regularly cleaned. Limescale buildup in the heating element also makes the machine work harder, shortening its lifespan and producing underextracted, flat-tasting coffee.
Drip Coffee Makers — Weekly Maintenance
- After every use: remove and rinse the carafe, basket, and filter holder with warm water
- Weekly: wash the carafe, basket, and lid with dish soap and warm water. Wipe the warming plate with a damp cloth.
- Never put the carafe in the dishwasher unless the manufacturer specifies it's safe — the heat can cloud glass.
Drip Coffee Makers — Monthly Deep Clean and Descale
- Fill the water reservoir with equal parts white vinegar and water
- Run a half brew cycle, then pause and let the solution sit for 30 minutes (this soaks the heating element)
- Complete the brew cycle
- Discard the vinegar solution and run 2–3 full brew cycles with plain fresh water to rinse
- Wash the carafe and basket as usual
The vinegar dissolves calcium carbonate deposits from the heating element and water lines. Use commercial descaling solution if you prefer — it works faster but costs more than vinegar.
Keurig Machines
- Remove the K-Cup holder and rinse under running water weekly
- Fill the reservoir with the official Keurig descaling solution (or 1 part white vinegar to 1 part water)
- Run the descale cycle (press and hold the 8oz and 12oz buttons simultaneously on most models to enter descale mode) or simply run multiple brew cycles without a K-Cup until the reservoir is empty
- Rinse by running 3–4 full reservoirs of plain fresh water through the machine
- Descale every 3–6 months — Keurig will usually display a "descale" light as a reminder
Nespresso Machines
Use Nespresso's official descaling kit or a commercial descaler — do not use vinegar as it can damage the aluminium components in some Nespresso models. Follow the machine's specific descaling procedure (varies by model — it's in the manual or on Nespresso's website). The machine typically blinks in a specific pattern to indicate descaling is needed.
The Carafe
For coffee stains inside the carafe that won't wash off: fill with hot water, add 2 tablespoons of baking soda, swirl and leave 15 minutes. The alkalinity breaks down the tannin stains. For stubborn staining: add a denture tablet to hot water and leave overnight.
How Often
- Rinse basket and carafe: after every use
- Wash with soap: weekly
- Descale: every 1–3 months depending on water hardness and usage
Kitchen cleaning including appliances is part of every Maidless deep clean. Book at maidless.ca.