NEW DELHI: The death toll has climbed to 54 from consumption of tainted liquor in India's southern state of Tamil Nadu, with more than 100 people still in hospital, a government official said on Saturday (Jun 22). Nearly 200 people have been treated since Wednesday for vomiting, stomach aches and diarrhoea
Or, the lazier method would be they just don’t throw away their first pours which are full of methanol and so 3 or 4 bottles from each batch are poison. This can easily happen with someone who just doesn’t know what they are doing trying to not waste product.
The simplicity of that explanation makes it feel more likely to me.