Police have uncovered a meth lab on a rural property near Braidwood, close to burning bushfires.
The "large-scale" lab was raided on Saturday by detectives from the State Crime Command's Drug and Firearms unit.
Police found 45 litres of methylamphetamine oil, which could be used to make more than $30 million worth of ice.
The rural property was close to the North Black Range bushfire and posed an added risk to neighbours.
"The location of this property is not far from bushfires still impacting the southern region and we know illicit substances, such as ice, are manufactured in volatile environments, which presents serious risks of explosions and contamination," Detective Superintendent John Watson said.
"The activities we have observed at this site show a blatant disregard for human life and the potential to cause catastrophic damage."
Two men - aged 37 and 38 - were arrested at the scene accused of being meth cooks.
They faced court on Monday.