How Long Does Hard Seltzer Last?

Updated March 2026

There is no official -month clock for hard seltzer. brand / opened-can days Read the printed best-by and keep the can cold and closed. Typical core lots sit near 5% Sugar-base and malt-base are different classes. An opened can is talk, not a TTB spec. Under 0.5% cannot say beer.

Related: what alcohol is in hard seltzer, how long Mike’s lasts, how long Coors Light lasts.

Can vs

Language Note
Best-by Primary
Opened
Typical core ~5% Not a legal type
12 oz at 5% From labeled ABV
Under 0.5% Cannot say beer

Read the can. Pair: what alcohol is in White Claw.

Sources

  • -month Best-by on the can is primary.
  • 27 CFR 7.145. NIAAA December 2025. No invented open-can days.
  • NIAAA one drink

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