The mother of a Queensland man accused of stockpiling explosive chemicals says her son isn’t dangerous and police have blown the case out of proportion.

James Christie Fraser, 32, appeared in Beenleigh Magistrates Court on Monday after police allegedly found chemicals for making explosives as well as bullet casings, spent munitions and an inert training grenade at his Rochedale South house.

• Police detonate homemade bombs

Fraser did not apply for bail and was remanded in custody.

Outside court his mother, who declined to give her name, said her son used to let off fireworks and search old army depots with metal detectors.

“He likes chemistry. He’s not a danger to anybody, I can tell you,” she told reporters.

“He just likes making fireworks. Who doesn’t? It used to be legal at one stage.

“I really think this has all been blown out of proportion you know. This is a bit outrageous.”

Fraser is charged with a number of offences including manufacturing explosives without authority, failing to correctly store explosives and two counts of unlawfully possessing weapons.

He’s also expected to be charged with cannabis possession after police allegedly found more than 170 grams of the drug at the property.

In court Senior Sergeant David Clarke said police were still gathering information from the crime scene and asked for more time to prepare a prosecution opposition to bail document.

Sen Sgt Clarke said parts of the property were still to be cleared, including a shed with a large volume of chemicals, and it would probably be two days before the area was declared safe.

It would take up to a week for samples of the evidence to be tested, he said.

Fraser’s case was adjourned until November 19.

Police were led to raid the house by a series of photos and posts Fraser allegedly made on Facebook.

Officers have ruled out any links to terrorist groups and this weekend’s G20 world leaders’ summit.

-AAP