British tourists have been warned about drinking spirits abroad, with a campaigner comparing it to playing "Russian roulette".
Amanda Dennis, a family representative for Simone White, who died after drinking shots at a hostel bar in Laos, said the risk of methanol poisoning is "just not known".
Miss White, a lawyer from Orpington, died in November last year, which has raised calls for backpackers and holidaymakers to be given advice before travelling abroad.
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Conservative MP Laura Trott is set to make a speech in the House of Commons next month, where she will urge politicians to back her proposal to boost Government advice for holidaymakers.
Ms Dennis said: "The advice needs to be much harder, it needs to be much more obvious, and it needs to be the truth, which is, 'you do not drink spirits, if you do, you are playing Russian roulette'."
Ms Dennis, who described Miss White as "intelligent" and "very well-travelled", explained how she was "not a one-off" and "it can happen to anybody".
She said: "She'd been everywhere, she'd been all over the world. If it can happen to her, it can happen to anybody."
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Simone White died from the suspected mass 'methanol-laced alcohol poisoning' | Ms Dennis has called for "the information surrounding methanol poisoning to be far more precise and to be far more transparent, to be much stronger, because at the moment it's incredibly wishy-washy".
Methanol is a clear, colourless liquid which is found in small amount naturally in the body, as well as fruit and vegetables.
But drinking small amounts is "dangerous", according to the UK Health Security Agency, and can have serious consequences such as blindness or death.
Methanol is more harmful than ethanol, which is a similar compound found in ordinary drinking alcohol.
Ms Dennis explained that in many cases, drinking methanol is "not spiking", as the substance added to drinks either "at the point of distillation of the alcohol by poor distillation, and it's not decanted off, or it's added on purpose to make the alcohol go further".
The campaigner said she had seen photos of a "so-called factory" in Laos, where there "might be a Smirnoff bottle but they'll fill it with something else".
Mr Dennis emphasised that the advice of buying sealed bottles is "rubbish", following the death of Chezyne Emmons, who bought alcohol from a shop in Indonesia.
Miss Emmons' sister, Measha Rudge, launched the website methanolawareness.com in a bid to encourage tourists to "keep clear of counterfeit alcohol".
Ms White died from drinking methanol in Laos
|GETTY
She said: "We do have a responsibility - we're not going to change their rules and their regulations in (other) countries - but we are able to provide advice where we should be providing advice to make sure that people can keep themselves safe when they're away on holiday."
Ms Trott has a ten-minute slot to propose her Methanol Poisoning Bill on September 3.
She said: "Simone's experience in Laos is a powerful reminder to us all of the dangers of methanol poisoning, and it has been a privilege to work with her family on their campaign to raise awareness
"My Bill, which has cross-party support, would require the Government to provide clear, prominent and consistent travel guidance about methanol poisoning in countries where the risk is known to exist - a simple yet crucial step if we are to truly warn others of the dangers.
"Families like Simone's have endured unimaginable grief, and they are doing all they can to ensure other families do not have to face the same loss."