You Might Rethink Drinking from a Can After This

Drinking straight from an aluminum can is quick, convenient, and something most of us do without thinking twice. But this everyday habit may carry a few overlooked risks — from bacteria on the rim to long-term health considerations.

Understanding these potential concerns doesn’t mean you need to panic — it simply helps you make smarter, safer choices.

1. Bacterial Contamination on the Can’s Surface

Before reaching your hands, beverage cans travel through warehouses, trucks, stockrooms, and store shelves. Along the way, they can collect dust, dirt, and bacteria.

Reports highlighted by CBS News have referenced testing that found some can tops contaminated with bacteria due to improper storage conditions. While not every can is unsafe, the rim may not always be as clean as it looks.

Drinking directly from an unclean surface could potentially expose you to germs that cause gastrointestinal discomfort or mild infections.

Simple fix: Wipe the top of the can before opening it.

2. Chemical Exposure from Can Linings
   Most aluminum cans are lined with protective coatings to prevent corrosion and preserve taste. Some of these linings historically contained Bisphenol A (BPA).

Research has linked BPA exposure to:

Hormonal disruption
Reproductive concerns
Potential increased cancer risk
While many manufacturers have reduced or replaced BPA in recent years, concerns remain about cumulative exposure from multiple sources. Heat and long storage periods may increase the likelihood of chemical migration into beverages.

Tip: Store canned drinks in cool places and avoid leaving them in hot cars.

3. Risk of Ingesting Foreign Objects or Insects
   It’s uncommon — but not unheard of — for insects like bees or wasps to enter open cans left unattended outdoors. Drinking without checking could result in painful stings inside the mouth or throat.

For individuals with allergies, this could trigger serious reactions, including anaphylaxis.

Safer option: Pour the beverage into a glass or use a straw when outdoors.

4. Dental Health Concerns
   Many canned beverages — especially sodas and energy drinks — are highly acidic and sugary. These substances can:

Erode tooth enamel
Promote cavities
Contribute to long-term tooth decay
Sipping directly from a can may prolong contact between the liquid and your teeth, increasing damage risk.

Tip: Use a straw and rinse your mouth with water afterward.

5. Environmental Considerations
   Aluminum is recyclable, but not every can makes it into the recycling stream. Manufacturing and disposal contribute to energy consumption and environmental impact.

Choosing reusable bottles or purchasing beverages in larger containers can reduce waste.

6. Expiration and Storage Issues

Canned beverages do expire. Over time, flavor can degrade and chemical interactions between the lining and beverage may occur.

Always:

Check expiration dates
Store cans in cool, dry areas
Avoid consuming bulging or damaged cans

7. Metabolic Health Impact
   Beyond the can itself, the contents matter most. Regular consumption of sugary beverages is linked to:

Obesity
Type 2 diabetes
Insulin resistance
Metabolic syndrome
Even diet sodas containing artificial sweeteners have been studied for potential effects on gut health and cravings.

Moderation — and choosing water or unsweetened drinks more often — supports better long-term health.

Practical Tips for Safer Consumption
To reduce potential risks:

Wipe the can’s rim before opening
Use a straw or pour into a glass
Check expiration dates
Store properly
Limit sugary beverages
Recycle responsibly
Final Thoughts

Drinking from aluminum cans is generally safe for most people — but it’s not entirely risk-free. Small precautions can minimize exposure to bacteria, chemicals, and other avoidable hazards.

A quick wipe of the rim, mindful storage, and moderation in sugary drinks can make a meaningful difference. Convenience is important — but a few extra seconds of caution can help protect your health in the long run.