Which Foods and Drinks to Avoid after getting your Teeth Whitened - Dental Guide Australia

Which Foods and Drinks to Avoid after getting your Teeth Whitened

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If you’ve recently had your teeth whitened, maintaining your new, brighter smile can be a concern. After spending time researching and choosing the right procedure, you want the effects to last as long as possible.

Some of the major causes of tooth discolouration and staining are due to diet and lifestyle factors that affect the exterior of the tooth (what Dentists refer to as extrinsic causes). Substances that stain and damage the outside layer of enamel, or create tartar build up, can cause teeth to turn yellow, brown, and in severe cases, grey or black.

Women with white teeth eating a strawberry.

Tooth whitening isn’t a preventative measure against future staining and discolouration. If you continue eating and drinking things that affect the exterior layer of your teeth, you may find stains will gradually return.

Your Dental Practitioner will advise you to avoid certain foods for the first 48 hours after the procedure, but you will also want to prevent discolouration over the longer term.

Despite there being many types of products which can affect your teeth, it is easy to learn which products may have contributed to their discolouration. By reducing or eliminating them from your diet after having your teeth whitened, you can extend the treatment effects and enjoy a whiter smile for much longer.


Smoking or chewing tobacco isn’t just bad for your oral health, but also the colour of your teeth. You only need to look at the filter of a used cigarette to see it has changed from white to brown, and this is the result of only one cigarette.

Tobacco has the same effect on your tooth enamel, and if you are smoking at the same time as drinking alcohol, the acid in your booze will further erode the enamel layer.

Loose brown tobacco on white background

If you have just had your teeth whitened, the safest way to avoid discolouration from tobacco is to abstain from smoking for 48 hours. If you find it difficult not to smoke at all, try and cut down as much as possible, and when you do, brush your teeth immediately afterward using a small amount of baking soda.

Dark Sauces

Rich, dark coloured sauces may be delicious and flavoursome, but they aren’t the best choice for your teeth, especially if they’re newly whitened. Sauces made from tomato, such as Italian style recipes, soy sauce-based dishes or foods made from gravy, such as stews and casseroles, all have the potential to stain your teeth. If you want to protect the fresh whiteness of your tooth whitening procedure, avoid these foods for the first 24-48 hours.

Acidic Fruits

Acid can damage the outside layer of the teeth by wearing away the enamel, and this can make the outside of the tooth more porous and susceptible to staining. Acidic fruits include peaches, grapes or pineapple, plus citrus fruits such as oranges, grapefruit, and lemons. By avoiding these kinds of fruits, you will reduce the risk of staining and prevent any discolouration, especially in the first few days after teeth whitening.

Fruits cut in half lime, lemon, orange and grapefruit.

If you want to continue incorporating fruit into your diet after having your teeth whitened, bananas can be a great option as they won’t discolour your teeth or damage your enamel. If you want further advice, then you can contact your local Dental Practitioner, such as a Dentist in Milton Keynes, who would be happy to answer your questions about which fruits to avoid after getting your teeth whitened.

Some Vegetables

Vegetables are one of the most important parts of a balanced diet, but some can have an unwanted effect on the whiteness of your teeth. Green and leafy vegetables such as cabbage, kale, broccoli, and peas can stain your teeth, as well as sweet corn, mushrooms, and even carrots.

Despite their potential to stain teeth, eating these foods in moderation can help keep teeth whiter for longer. In the first days after having your teeth whitened, swap out these tooth-staining vegetables for more tooth-friendly options such as celery, strawberries or cauliflower.

Snacks with Powdered Cheese

If you enjoy savoury snacks, it’s likely that cheese-flavoured items feature in your diet, such as crisps, nuts or crackers. These kinds of foods are usually flavoured using a fine powdered cheese (the kind that covers cheese puffs and makes them bright orange), and no doubt you will have experienced this powder sticking your fingers.

Chips with cheese and powered cheese in white bowls.

This brightly coloured powder can coat your teeth and get in every tiny gap or ridge and has the potential to stain teeth easily.

Very Hot or Cold Foods

A temporary increased sensitivity after a tooth whitening procedure can be common, and your Dental Practitioner may even provide you with a product to help reduce discomfort. However, this increased sensitivity can enhance the sensation of very hot or very cold foods, which can be unpleasant and painful.

Foods which are served extremely hot, such as soups and sauces, or frozen foods like ice cream and iced drinks can trigger discomfort. By avoiding these kinds of foods for at least 48 hours after having your teeth whitened, you will give yourself an easier and more comfortable recovery.

   Author Bio:

Man smiling with glasses.
Dr. Kaival Patel

Dr. Kaival Patel is the principal Dentist at Oxford House Dental Practice, a pioneer in quality dentistry since it's establishment in 1954. With the friendly attitude of its surgeons and the full range of dental treatments, it is a well-known dentist in Milton Keynes.

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