New evidence suggests maple syrup producers in Quebec, Canada, are continuing to use the banned chemical paraformaldehyde, which is used to disinfect the hole in the tree and extend by several weeks the time that sap can be tapped.

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A survey of 50 mostly large-scale producers by Health Canada revealed 21 producers using the chemical. Officials are now considering prosecutions – fines can be up to CAN$50,000.


In February, neighbouring Vermont, in the USA, threatened an embargo against Quebec maple syrup after hearing rumours that paraformaldehyde was still in use. Its agricultural officials are worried that this threatens the integrity and reputation associated with syrup generally; Vermont makes around 20 percent of the world’s maple syrup.


By Keith Nuthall, just-food.com correspondent

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