Rainbow Serpent Festival director Frank Venuto issued a statement to the Northern Weekly after Daniel Buccianti's mother lashed out at festival organisers for not making contact after her son's death.

Daniel Buccianti, 34, died about 1.30am on January 29, several hours after phoning his mother and saying he had "taken some bad acid".

His mother, Epping resident Adrianna Buccianti, dismissed Mr Venuto's statement, saying he still had not contacted her personally. She said she was disgusted organisers had ignored the funeral of her son Daniel, held in Yarrambat two weeks ago.

"I still haven't seen Venuto, to hear him say: 'This is a really bad thing, and we're very upset'," she said.

Mr Venuto released a statement last week saying organisers had wanted to give the family space to grieve, and that they took measures to discourage dangerous behaviour at the four-day international music, arts and lifestyle festival.

"Everyone involved with the Rainbow Serpent Festival is devastated that this tragedy has happened and our thoughts and condolences go out to Daniel's family and friends," the statement read. "We are a close-knit, caring community and his passing has been felt through our wider family.

"As far as we know, the cause of death has not been confirmed and we have assisted the police and coroner with their investigations and await their findings.

"The festival has a significant positive lifestyle program ... cars are searched by security as they enter the property and any prohibited items are confiscated.

"We understand that this is an emotional time for family and friends. While there is nothing we can do or say to lessen the sense of loss, we wanted to give the family some space to grieve and it was always our intention to contact them following Daniel's funeral."

Ms Buccianti shrugged off the statement. "Time to grieve? Is he for real?" she said.

"My source of anger is that they didn't stop the music [at the festival] for even just 10 minutes to acknowledge the death. It was like nothing had happened."

She said she was awaiting a toxicology report from police and would then seek legal advice about taking action against the festival organisers. She said she believed her son, a chef, had bought drugs at the festival.

"It's a horror film. It's insanity, a parent's worst nightmare."

More than 100 people attended Daniel's funeral on Friday, February 10.