Inadvertently drinking hazardous substances

  • Safety Flash
  • Published on 9 June 2021
  • Generated on 18 March 2026
  • IMCA SF 16/21
  • 2 minute read

Someone unintentionally drank a hazardous substance out of a drinking water bottle

What happened?

The incident occurred when crew members were painting on deck. During the work, one member of the crew went for a drink from the galley. He found a plastic bottle that seemed to be filled with water. However, this bottle was filled with paint thinners, and he unavoidably ingested about 20 ml of the substance. The thinners entered his throat and stomach. The person involved drank milk and water afterwards and already felt a bit better. He felt it was not necessary to see a doctor at that time.

However, throughout the subsequent night, he vomited multiple times. In the morning he was sent to hospital. After consultation in the hospital, he received medication and was able to return to work the next day.

What went wrong?

An empty drinking water bottle was used for thinners to mix paint. However, the person involved thought he was drinking from a standard plastic water bottle.

The crew member thought he was drinking from a standard plastic water bottle

Lessons learned

Our member notes that incidents like this happen more and more frequently and could potentially cause severe injuries.

  • Ensure that all bottles or containers used to store hazardous substances are correctly labelled and clearly identified.

  • Ensure that chemicals and hazardous substances are stored appropriately and not left in the mess or galley.

  • Check and ensure that no hazardous substances are ever stored in drinking bottles.

For information, additional lessons from a similar previous incident are reiterated here:

  • If it is necessary to decant chemicals from their original containers:

    • Always decant the chemicals in the chemical storage area.

    • Use a container in good condition, of type appropriate for the chemical.

    • Ensure that containers are clearly labelled; the labels should be clean and legible and should include:

      • full product name

      • manufacturer's name

      • safety data sheet (SDS) reference.

Do not use bottles normally used for, or associated with, drinking water.

Latest Safety Flashes:

Battery power bank explodes in cabin

On a vessel, a power bank exploded and caught fire at night whilst it was being charged.

Read more
Failure of A-frame fold-down platform

An A-frame fold-down platform failed leaving a crew member suspended by their safety harness.

Read more
Working in a confined space without a Permit to Work

During a safety walk-round, personnel were found working inside a sewage tank, without a Permit to Work.

Read more
Unsafe handling of gas cylinders

A vessel’s Chief Mate noticed unsafe positioning of compressed gas cylinders on the quayside.

Read more
MSF: Unsecured bulk hose near miss

A stored bulk hose moved in an unplanned way and almost struck a crew member.

Read more

IMCA Safety Flashes summarise key safety matters and incidents, allowing lessons to be more easily learnt for the benefit of the entire offshore industry.

The effectiveness of the IMCA Safety Flash system depends on the industry sharing information and so avoiding repeat incidents. Incidents are classified according to IOGP's Life Saving Rules.

All information is anonymised or sanitised, as appropriate, and warnings for graphic content included where possible.

IMCA makes every effort to ensure both the accuracy and reliability of the information shared, but is not be liable for any guidance and/or recommendation and/or statement herein contained.

The information contained in this document does not fulfil or replace any individual's or Member's legal, regulatory or other duties or obligations in respect of their operations. Individuals and Members remain solely responsible for the safe, lawful and proper conduct of their operations.

Share your safety incidents with IMCA online. Sign-up to receive Safety Flashes straight to your email.