Coffee and red wine are two of the most common causes of tooth discolouration. Both contain tannins — naturally occurring compounds that bind to tooth enamel and leave a yellow or brownish film over time. The acidity in both drinks also roughens enamel microscopically, giving stains an even better grip.
The result: a smile that looks dull, stained, and older than it should.
Why do coffee and wine stain so effectively?
Tannins in coffee and wine attach to the protein pellicle — the thin film that naturally coats your teeth. Chromogens, the intensely pigmented molecules in both drinks, then bind to those tannins and embed into enamel over time. The more frequently you drink them, and the longer the liquid sits on your teeth, the deeper the staining.
What actually works to remove stains
1. Professional cleaning (scale and polish) The most immediate and effective first step. At Tooronga Family Dentistry, our hygienist removes surface stains that brushing simply can’t reach — restoring your natural tooth colour without any bleaching agents. Many patients in Glen Iris and Malvern are surprised how much brighter their teeth look after a professional clean alone.
2. Air polishing A fine jet of pressurised powder and water that gently blasts surface stains from enamel. Highly effective for coffee and wine staining with no abrasion to enamel.
3. Professional teeth whitening For staining that has penetrated beyond the surface, whitening is the most effective solution. We offer both in-chair whitening and take-home custom tray whitening — both of which lift intrinsic staining that cleaning alone cannot address. More on whitening safety in our next blog post.
What you can do at home
- Rinse with water immediately after coffee or wine — it dramatically reduces staining
- Use a whitening toothpaste with low abrasivity (look for a low RDA rating)
- Drink cold coffee or wine through a straw to reduce contact with teeth
- Wait 30 minutes after drinking before brushing — acid softens enamel temporarily
- Maintain regular six-monthly check-ups and cleans
What doesn’t work
Charcoal toothpaste is heavily marketed but lacks evidence and can be overly abrasive. Lemon juice and bicarb soda home remedies risk enamel erosion. Oil pulling has no credible evidence for stain removal.
Noticing staining from coffee or wine? Call or book online a clean and consultation at Tooronga Family Dentistry — we see patients from Glen Iris, Malvern, Hawthorn, Hawthorn East and Ashburton