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Cover and illustration of the paper: Structural Performance of the Rich Tea Biscuit under Repeated Dunking
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Structural Performance of the Rich Tea Biscuit under Repeated Dunking

An experimental investigation into capillary infiltration, flexural degradation and catastrophic beverage-assisted failure.

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Applied Materials · 2026

Principal finding

The Rich Tea is not structurally inadequate. It is a light, economical structure repeatedly asked by the British public to perform offshore duties for which it was never certified.

Operational guidance: two controlled immersions are normally supportable. A third remains permissible at the operator’s own risk and should not be attempted while wearing a white shirt.