Can I Bring Materials that could spontaneously combust on a Plane to United Kingdom?
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Materials that could spontaneously combust
Not Allowed
Prohibited in both
According to CAA guidelines, the PDF says these items cannot be taken as hand luggage or in the hold.
The final decision rests with the CAA officer on whether an item is allowed through the checkpoint. Official CAA Rules →
Quick Rule
Carry-on Bag
Strictly prohibited
Checked Bag
Strictly prohibited
CAA Notice
Confiscated at security
Source: Official CAA Regulations ↗Updated: May 20, 2026
Also known as
Materials that could spontaneously combust
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Acids and alkalis, including spillable wet batteries
Carry-on
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Biological hazards, including infected blood, bacteria and viruses
Carry-on
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Corrosives or bleaching agents, including mercury and chlorine
Carry-on
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Not Permitted
Fire extinguishers
Carry-on
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Not PermittedNo Image
Oxidisers and organic peroxides, including bleach and car body repair kits
Carry-on
Not PermittedChecked
Not PermittedNo Image
Poisons or toxic substances, including rat poison
Carry-on
Not PermittedChecked
Not Permitted