Austin's Cold Brew Habit: Are Dentists Cashing In?
By Franklin Everett ShawAre your teeth feeling a little too sensitive after that third cold brew of the day? You’re not alone, especially if you’re an Austinite. The city’s vibrant cold brew scene, while a delicious perk, might be contributing to a silent epidemic: enamel erosion.
Let’s dive into why your love for cold brew in Austin could be slowly dissolving your pearly whites, and more importantly, what you can do about it.
Cold brew, unlike its hot-brewed counterpart, boasts a smoother, less bitter flavor profile. This is achieved through a long steeping process, typically 12-24 hours, using cold or room-temperature water. This process extracts different compounds from the coffee grounds, resulting in a beverage that’s often perceived as less acidic.
However, “less acidic” doesn’t mean non-acidic.
The pH scale, ranging from 0 to 14, measures acidity. A pH of 7 is neutral; below 7 is acidic, and above 7 is alkaline. Enamel, the protective outer layer of your teeth, starts to demineralize at a pH of around 5.5.
Many popular cold brew brands, both national and local to Austin, fall well below this threshold.
I contacted several local Austin coffee shops and, while reluctant to share exact pH readings (proprietary information, naturally), several baristas confirmed that their cold brew typically registers between 4.5 and 5.2. This is consistent with studies showing that cold brew generally has a pH between 4.85 and 5.13, slightly less acidic than hot brewed coffee, but still acidic enough to cause concern.
Why is this a problem?
Each sip of acidic cold brew subjects your enamel to an acid attack. Over time, these repeated attacks weaken the enamel, leading to sensitivity, discoloration, and an increased risk of cavities.
Austin’s tap water adds another layer to this problem. While generally safe to drink, Austin’s water tends to be on the softer side, meaning it has a lower mineral content, particularly calcium and magnesium. These minerals are crucial for remineralizing enamel.
Dr. Sarah Miller, a dentist practicing in South Austin, notes an uptick in enamel erosion cases among her younger patients, many of whom are avid cold brew drinkers. “We’re seeing more sensitivity and early signs of erosion, especially on the front teeth,” she says. “It’s not just the acidity of the cold brew, but also the frequency of consumption and the lack of remineralization.”
So, what can you, the cold brew-loving Austinite, do to protect your teeth?
First, be mindful of your consumption. Downing multiple cups of cold brew throughout the day exposes your teeth to prolonged acid attacks.
- Limit your intake to one or two servings per day.
- Avoid sipping on cold brew for extended periods. Drink it in one sitting rather than nursing it for hours.
Second, consider the pH of your cold brew. While exact figures are hard to come by, you can gauge acidity by taste. A noticeably tart or sour cold brew is likely more acidic.
Third, strengthen your enamel.
- Use a fluoride toothpaste. Fluoride helps remineralize enamel and make it more resistant to acid attacks. Dr. Miller recommends using a toothpaste with a higher fluoride concentration, available by prescription.
- Consider a fluoride mouthwash. Rinse with a fluoride mouthwash after drinking cold brew to help neutralize the acid and promote remineralization.
- Chew sugar-free gum containing xylitol. Xylitol stimulates saliva production, which helps neutralize acids and remineralize enamel.
- Incorporate calcium-rich foods into your diet. Dairy products, leafy green vegetables, and fortified foods provide calcium, a key building block for enamel.
Fourth, pay attention to your water. Since Austin’s tap water is relatively soft, consider these strategies:
- Use a remineralizing water filter. Some water filters add minerals back into the water, increasing its pH and mineral content. Look for filters specifically designed to remineralize water.
- Supplement with mineral drops. You can add mineral drops to your water to increase its calcium and magnesium content.
- Drink mineral water. Mineral water naturally contains higher levels of calcium and magnesium than tap water.
Fifth, don’t brush immediately after drinking cold brew. Brushing immediately after an acid attack can actually worsen enamel erosion. Wait at least 30 minutes to allow your saliva to neutralize the acid and remineralize the enamel.
Sixth, consider the addition of milk or cream. Adding milk or cream to your cold brew can help neutralize the acidity and provide calcium.
Seventh, visit your dentist regularly. Regular checkups allow your dentist to monitor your enamel health and identify any early signs of erosion.
A common mistake is thinking that all cold brew is created equal. The acidity can vary significantly depending on the coffee beans used, the brewing method, and the steeping time.
Another pitfall is neglecting oral hygiene. Even with mindful cold brew consumption, poor oral hygiene can exacerbate enamel erosion.
Finally, many people underestimate the cumulative effect of repeated acid attacks. Even seemingly minor erosion can lead to significant problems over time.
By implementing these strategies, you can continue to enjoy your favorite Austin cold brew without sacrificing your dental health. It’s about finding a balance between your love for caffeine and your commitment to a healthy smile. Remember, a little awareness and proactive care can go a long way in protecting your enamel from the silent threat of acid erosion.