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Stories & insights.

Everything you should know about BAC, drinking safety, and caring for your BACtrack device.

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Why and When to Calibrate Your Breathalyzer

Every sensor — including police-grade ones — drifts over time. Calibration restores accuracy.

April 22, 2026

Sex, age, weight, food, medication — why your BAC differs from your friend's, even at the same drinks.

April 18, 2026

Your BAC clock starts ticking at the first sip. Here's why drink-counting fails.

April 10, 2026

We grade four BAC estimation methods: self-assessment, drink-counting, calculators, and breath testing.

April 8, 2026