In Singapore, kopi and teh are more than just drinks – they’re an integral part of the food culture. From a traditional kopitiam breakfast to the busy hawker centres, these beverages fuel many of us throughout the day. However, while these comforting cups are beloved, they can also contribute to teeth staining if consumed frequently. So, if you’ve been noticing your smile looking a little less bright, you’re not alone. Let’s dive into how these drinks affect your teeth and what you can do to keep your smile shining bright.

The Role of Kopi and Teh in Singapore’s Food Culture
Singapore’s food culture is a reflection of its diverse and rich heritage, and nothing captures the essence of local living quite like a warm cup of kopi or teh. These drinks are not only enjoyed by individuals, but also serve as a social catalyst, whether it’s sharing a cup of kopi o in the morning with friends or sipping on a cold teh peng while catching up with family. The choices of kopi or teh vary based on personal preferences – and yes, these preferences can impact the health of your teeth.

Coffee and tea drinking in Singapore are central to the hawker breakfast culture. Whether paired with kaya toast, soft-boiled eggs, or even a bowl of noodles, these drinks create an enduring connection to the tradition of enjoying hearty, flavourful meals alongside a cup of kopi or teh. The early morning ritual of grabbing a cup of your favourite brew from a kopitiam (coffee shop) is part of the fabric of daily life. Yet, with all the sweetness and creaminess that these drinks bring, there’s also a downside: tooth staining.

Exploring the Types of Kopi and Teh: What’s in Your Cup?
When it comes to kopi and teh, there’s no shortage of variations, each with its own unique flavour profile and level of sweetness. Let’s break down some of the most popular options you’ll find in Singapore’s hawker centres and kopitiams.

Kopi O
This is the classic black coffee, made from strong coffee beans brewed with hot water and sweetened with sugar. Kopi O is the simplest, yet most robust version of kopi. The drink is typically less creamy, allowing the bitterness of the coffee to shine through, and is often served in a traditional glass or ceramic cup.
Kopi C
If you prefer a creamier texture, kopi c might be your go-to. This version is brewed in the same way as kopi o, but it’s sweetened with condensed milk, giving it a rich, velvety texture. The result is a coffee that’s smoother and sweeter, with the milk cutting through the bitterness of the coffee.
Kopi O Kosong
For those who enjoy their coffee black but without any sweetness, kopi o kosong is the answer. It’s made with no sugar, offering a more intense, bitter coffee flavour that many coffee aficionados appreciate. It’s perfect for those who love the pure taste of coffee without the added sweetness.
Kopi C Kosong
This is the unsweetened version of kopi c. Made with condensed milk, but no sugar, it provides a less sweet but still creamy coffee experience. It’s ideal for those who enjoy the texture of kopi c but want to cut down on the sugar content.
Kopi Peng
Kopi peng is a refreshing iced version of the regular kopi o or kopi c. It’s usually served over ice and sweetened with sugar, offering a cool and sweet alternative to the traditional hot cup. The ice dilutes the coffee slightly, creating a smoother, chilled experience that’s perfect for hot days.
Teh O
For tea lovers, teh o is the black tea equivalent to kopi o. It’s a strong tea brewed with hot water and sweetened with sugar. The bold tea flavour is front and centre, and like kopi o, it’s a less creamy, more straightforward option for those who like their drinks on the bitter side.
Teh C
Similar to kopi c, teh c is made with black tea and sweetened condensed milk. The result is a sweet and creamy tea that balances the bitterness of the tea leaves with the rich sweetness of the milk, creating a smooth and indulgent drink.

Teh Tarik
Arguably the most iconic of all, teh tarik is a strong, milky tea that’s “pulled” (or “tarik-ed”) from one cup to another to create its signature frothy top. The process of pulling helps to mix the tea and milk perfectly, giving it a smooth, velvety texture and an irresistible sweetness. The tea itself is usually quite sweet, thanks to the generous addition of condensed milk, making it the ultimate comfort drink for many Singaporeans.
Teh Peng
Like kopi peng, teh peng is the iced version of the classic teh o or teh c. It’s a refreshing, sweetened tea served over ice, ideal for a hot Singapore day. The ice adds a slight dilution, making the tea more mellow while still retaining the sweet tea flavour.

Each of these drinks not only provides a unique flavour experience but also contains different levels of sugar and milk. Kopi and teh are often consumed with local breakfast dishes like kaya toast or soft-boiled eggs, adding to the overall enjoyment of the meal. However, the sugar, milk, and acidity found in these drinks can contribute to tooth staining over time, especially if enjoyed frequently. By understanding the contents of your cup, you can make more mindful choices when it comes to your favourite morning brew.
Why Kopi and Teh Stain Teeth
Both kopi and teh contain tannins, a type of polyphenol found in coffee and tea that can cause stains to stick to tooth enamel. These tannins create pigments that accumulate over time, leading to noticeable discolouration. In addition, both beverages are acidic, which weakens the enamel, making it more susceptible to absorbing stains.

If you’ve noticed that your smile is looking less vibrant after years of enjoying these drinks, you’re not alone. These stains don’t just affect the appearance of your teeth—they can also have a long-term impact on your dental health.
How Stains Can Damage Teeth
While stains on teeth are often a cosmetic concern, they can sometimes indicate deeper issues that could affect your oral health. Over time, staining can lead to the following problems:

- Weakened EnamelThe acids found in kopi and teh can erode tooth enamel, which is the protective outer layer of your teeth. When enamel is weakened, the teeth become more vulnerable to decay and further staining. Enamel erosion can lead to tooth sensitivity, making it painful to consume hot or cold foods and drinks.
- Plaque Build-UpStains on teeth often accompany the build-up of plaque, a sticky film of bacteria that forms on your teeth. Plaque can turn into tartar if not removed, and tartar is difficult to clean without a professional cleaning. This build-up can further contribute to staining and may lead to gum disease or cavities if left untreated.
- Long-Term DiscolourationAs kopi and teh stains accumulate over time, they can penetrate deeper into the enamel, causing more persistent discolouration. Even regular brushing may not be enough to remove these stubborn stains, making them harder to address without professional help.
Teeth Stains & Discolouration - Diminished Aesthetic AppealThe build-up of stains can make your smile look dull or yellow, diminishing your overall appearance and confidence. If you’ve been drinking these beverages for years, it may become increasingly challenging to maintain the bright smile you once had.
How to Reduce Staining While Enjoying Your Favourite Kopi or Teh
If giving up kopi or teh is not an option, there are still ways to minimise staining:
- Use a StrawDrinking through a straw helps reduce direct contact between the beverage and your teeth, limiting the chances of staining.
- Rinse with WaterSwishing water around your mouth after drinking kopi or teh helps wash away some of the pigments before they settle on your enamel.
- Drink in One SittingSipping on kopi or teh throughout the day prolongs exposure to staining agents. Instead, finish your drink in a shorter time to limit discolouration.
Singaporean man brushing teeth - Brush and Floss RegularlyMaintaining a good oral hygiene routine helps prevent stain build-up. However, wait at least 30 minutes before brushing after consuming acidic drinks to avoid enamel erosion.
- Opt for Lighter VersionsIf possible, go for a less intense brew or dilute your kopi and teh with milk, which can reduce its staining effects.
Teeth Whitening Solutions & Dental Care
For those who have been drinking kopi and teh regularly, professional teeth whitening is an excellent way to address stubborn stains. These beverages contain tannins and acids that contribute to surface staining, and over time, they can penetrate the enamel, making discolouration more difficult to remove through regular brushing alone.
Teeth whitening can break down these stains, lifting years of discolouration from your teeth. Whether you have minor surface stains or deeper discolouration from long-term drinking habits, teeth whitening offers a solution that restores your teeth to their original brightness. It’s a great way to enhance your smile without having to give up your favourite drinks.

The Benefits of Professional Teeth Whitening
- Quick and Effective ResultsProfessional whitening treatments, particularly in-office whitening, can deliver immediate and significant results. If you’ve got an event coming up or simply want to freshen up your smile, a whitening session can transform your look in just one appointment.
- Tailored to Your NeedsYour dentist will assess the condition of your teeth and customise the whitening process to suit your individual needs. Whether you have sensitive teeth or particularly stubborn stains, the treatment can be adjusted to ensure the best outcome for you.
- Long-Lasting EffectsWhen done professionally, teeth whitening results can last for a long time. By following a proper oral care routine and avoiding excessive consumption of staining foods and drinks, you can maintain your brighter smile for months.
- Improved ConfidenceA whiter, brighter smile can significantly boost your confidence. It enhances your overall appearance and allows you to smile freely without worrying about tooth discolouration.
- Safe and ComfortableProfessional teeth whitening is safe when performed by a qualified dentist. The treatments are carefully monitored to avoid potential damage to the enamel or gums, ensuring your teeth remain healthy throughout the process.
Additional Dental Support for Your Smile
At We Smile Dental, we offer a range of dental services to not only brighten your smile but also improve your overall oral health. Our treatments are designed to ensure that you feel confident about your smile while addressing any underlying concerns you may have. In addition to teeth whitening, we offer:
Routine Dental Cleanings:
Regular cleanings are essential to maintaining a bright smile and preventing plaque build-up that can lead to stains and cavities.
Cosmetic Dentistry:
Veneers are resistant to stains and discolouration, keeping your smile bright for years to come! If you’re looking for a more versatile option, dental bonding can repair chips, close gaps, and reshape teeth for a natural look. From veneers to dental bonding, we offer solutions to enhance the appearance of your teeth and restore their natural beauty.
Dental Check-Ups:
Keeping up with regular check-ups ensures any issues, such as gum disease or cavities, are detected early on and can be treated promptly.
Oral Hygiene Advice:
We provide expert guidance on how to care for your teeth, ensuring you maintain your white smile for the long term.

If you want to give your smile a quick refresh, we’re here to help. Our professional team of dentists is dedicated to helping you achieve and maintain the smile you’ve always wanted.
Book an Appointment with We Smile Dental
At We Smile Dental, we offer both in-office and at-home whitening options tailored to your needs. Our dental team will guide you to the best solution, whether you need a quick refresh or a gradual treatment. With the right care, you can continue enjoying your favourite drinks without worrying about stains.
We also offer the WeSmile Essentials, which includes a comprehensive dental check-up and cleaning, designed to keep your teeth healthy while maintaining their brightness. It’s a great way to stay on top of your oral health and ensure long-lasting results.
Book an appointment today and take the first step towards a brighter, more confident smile.