What makes Warheads so sour?

The outer coating is packed with citric and malic acid, which hits taste buds hard before dissolving into the milder candy underneath.

Are they still as sour as they used to be?

Yes — the formula is largely unchanged since the early 1990s.

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1990s · snacks

Hard candy that hit you with a wall of sour so intense kids would time each other, then mellowed out into a normal sweet once the shock wore off.

Warheads! Extreme sour that hits in the first three seconds — if you can survive it, the candy underneath is actually sweet.

The first few seconds were basically a dare — puckered faces and watering eyes were part of the fun.
Trading them at school came with a warning, like handing someone a tiny dare in wrapper form.
The sour coating faded into a completely normal, mild candy once you survived the initial hit.

Warheads were created in 1993 and imported to the U.S. by the Foreign Candy Company.
Their extreme sourness comes from a coating of citric and malic acid crystals.
Warheads ran a genuine "sour candy challenge" marketing angle that fueled a wave of playground dares in the 90s.

“extreme sour hard candy”, “sour candy challenge”, “warheads sour candy”

What makes Warheads so sour?: The outer coating is packed with citric and malic acid, which hits taste buds hard before dissolving into the milder candy underneath.
Are they still as sour as they used to be?: Yes — the formula is largely unchanged since the early 1990s.