updated

Erin Patterson evidence recap: Accused mushroom killer’s dehydrator admission after beef Wellington lunch

Max Corstorphan
The Nightly
Ms Patterson has pleaded not guilty. Supplied/ 9News.
Ms Patterson has pleaded not guilty. Supplied/ 9News. Credit: Supplied,

Scroll down for the latest updated from Erin Patterson’s triple murder trial over a fatal death cap mushroom lunch.

Key events

04 Jun 2025 - 02:09 PM

Multiple laptops seen in photos, but court adjourns before answers

04 Jun 2025 - 01:52 PM

Why Patterson didn’t end up changing her phone number

04 Jun 2025 - 01:48 PM

Patterson breaks down describing kids relationship with late grandparents

04 Jun 2025 - 01:40 PM

Patterson ‘hurt’ by ex’s ‘poor parenting’ accusation

04 Jun 2025 - 01:23 PM

Police didn’t take all devices from Erin Patterson’s home

04 Jun 2025 - 01:10 PM

Patterson reset phone to remove ‘dehydrator’ evidence

04 Jun 2025 - 01:05 PM

‘The new phone’: Why Erin Patterson changed numbers and phone

04 Jun 2025 - 01:01 PM

Patterson withheld information from health authorities

04 Jun 2025 - 12:54 PM

Erin's admission: ‘I took the dehydrator to the tip’

04 Jun 2025 - 12:51 PM

‘Is that how you poisoned my parents, using that dehydrator’

04 Jun 2025 - 12:47 PM

‘The lunch I served on Saturday might have made people unwell’

04 Jun 2025 - 12:40 PM

Patterson grilled on ‘where ingredients came from’

04 Jun 2025 - 12:36 PM

Erin Patterson ‘loopy’ after ambulance ride fentanyl

04 Jun 2025 - 12:32 PM

‘Bring them to the hospital’: Kids collected after eating leftovers

04 Jun 2025 - 12:26 PM

Erin Patterson tells police where the ‘leftovers’ are

04 Jun 2025 - 12:11 PM

Erin Patterson returns to witness box after giving bombshell evidence

04 Jun 2025 - 11:23 AM

Court adjourned for lunch

04 Jun 2025 - 11:03 AM

Patterson told hospital she needed to ‘do a few things’ before receiving urgent care

04 Jun 2025 - 10:56 AM

‘We’ve been expecting you’: Patterson greeted at hospital

04 Jun 2025 - 10:49 AM

Patterson removed “mushroom and pastry” from Wellington leftovers to serve to kids

04 Jun 2025 - 10:46 AM

Patterson’s bowel movements during car trip to flying lesson

04 Jun 2025 - 10:41 AM

When Erin Patterson learned her in-laws were unwell

04 Jun 2025 - 10:37 AM

Erin Patterson’s symptoms after fatal beef Wellington lunch

04 Jun 2025 - 10:34 AM

Patterson confirms she went to Subway but says video evidence is not her

04 Jun 2025 - 10:30 AM

‘Loose stools’ after fatal mushroom lunch

04 Jun 2025 - 10:23 AM

Patterson binged on cake after fatal mushroom lunch

04 Jun 2025 - 10:20 AM

‘I shouldn’t have lied to them’: Family pray for Erin’s fake made-up health issues

04 Jun 2025 - 10:17 AM

‘I’m not proud of this’: Lunch begins and Erin Patterson lies to family

04 Jun 2025 - 10:11 AM

Patterson ‘didn’t need any help’ with plating up ‘special’ lunch

04 Jun 2025 - 10:05 AM

Patterson’s plate evidence conflicts with lunch survivor’s

04 Jun 2025 - 09:45 AM

Only five of six beef Wellingtons served at fatal lunch

04 Jun 2025 - 09:42 AM

‘I put out the plates and started serving’: Patterson dishes up beef Wellingtons

04 Jun 2025 - 09:38 AM

Why Patterson’s kids were not at beef Wellington lunch

04 Jun 2025 - 09:35 AM

‘I put them in the oven’: Accused killer prepared lunch

04 Jun 2025 - 09:31 AM

Patterson lied after ex-partner cancelled on her ‘special’ beef Wellington lunch

04 Jun 2025 - 09:28 AM

‘Bland’: Patterson added ‘dried mushrooms’ to her recipe from the pantry

04 Jun 2025 - 09:23 AM

Why Patterson had to use ‘a lot more’ mushrooms in her beef Wellington

04 Jun 2025 - 09:17 AM

Patterson reveals ‘deviation’ from beef Wellington recipe

04 Jun 2025 - 09:13 AM

Why Erin Patterson decided to cook beef Wellington

04 Jun 2025 - 09:11 AM

Patterson explains why she lied to family

04 Jun 2025 - 09:07 AM

‘I shouldn’t have done it’: Patterson on lying text messages

04 Jun 2025 - 09:02 AM

‘I had invited Don and Gail to come for lunch’

04 Jun 2025 - 08:57 AM

‘I became aware of death cap mushrooms quite early’: Patterson’s evidence

04 Jun 2025 - 08:56 AM

‘I don’t remember seeing mushrooms like that,’ Patterson says

04 Jun 2025 - 08:51 AM

‘They look like the mushrooms I saw in the garden’: Patterson’s photos

04 Jun 2025 - 08:45 AM

‘Some mushrooms and some grass’: The photos Patterson took

04 Jun 2025 - 08:34 AM

Lunch survivor watches on as accused killer cook gives evidence

04 Jun 2025 - 08:17 AM

Accused mushroom killer returns for third day of evidence

Max Corstorphan

Multiple laptops seen in photos, but court adjourns before answers

Ms Patterson said she had “two” Acer laptops in her home and a “very old” laptop, a Lenovo ThinkPad, that was kept in a “tub in the garage”.

The accused was shown a photo that showed the laptops not in their usual place on an occasion.

Ms Patterson went on to explain that she would get a skip brought to her home “every year” to do a clean out.

At that point, the defence asked for Ms Patterson’s remaining evidence to be carried over until Thursday, with approximately 15 minutes of additional evidence to be given then.

Max Corstorphan

Why Patterson didn’t end up changing her phone number

Ms Patterson said that after a police interview, following her hospital stay after the fatal beef Wellington lunch, she realised police had not collected one of her phones.

The phone, she said, was damaged, so she transferred it over to a Nokia device and “abandoned” attempts to change her number.

“As of Sunday evening (8 days after the lunch), when child protection became more involved, it became clear Simon would have to contact me,” she told the court.

Max Corstorphan

Patterson breaks down describing kids relationship with late grandparents

Ms Patterson was shown a quantity of messages in a group chat with her family, something that made her emotional.

She explained she had a “good” relationship with Don and Gail Patterson, something that then changed when her message began to show “tension” due to ongoing mediation issues.

Ms Patterson also gave evidence on “wonderful” tutoring sessions her in-law, Don, gave her son to help him “keep up” at school.

Ms Patterson said her children were “very close” with their grandparents, breaking down in tears as she gave the evidence.

Max Corstorphan

Patterson ‘hurt’ by ex’s ‘poor parenting’ accusation

The defence has jumped back a bit.

Erin Patterson has been asked to respond to evidence her ex-partner, Simon Patterson, gave about an “extremely aggressive” message she sent to the family around mediation.

Ms Patterson recalled, “he was upset with me” about a child being very tired.

“He suggested it was due to my poor parenting. I was very hurt by that.”

Ms Patterson said she sent it “just as a reply” to her ex-partner, disputing his claim it was shared with family in a group message.

The accused was about a collective of messages in a group chat, which included Don and Gail Patterson, and was asked if she was rude, to which she replied “no”.

Max Corstorphan

Police didn’t take all devices from Erin Patterson’s home

Ms Patterson went on to explain a complex interchange of phone possession between her and her children. She took phones her sons had used.

“I wanted to change my phone number so Simon couldn’t contact me anymore,” she told the court, which was talking about a time around a week after the fatal lunch.

She admitted police took some devices from her home, while she clandestinely kept possession of other devices.

Max Corstorphan

Patterson reset phone to remove ‘dehydrator’ evidence

Erin Patterson told the court that she attempted to hide evidence from detectives by resetting a phone.

Ms Patterson said she knew “photos of the dehydrator” were on one of her devices, so she “reset” the phone to destroy the image.

“The detectives,” she said, “I didn’t want them to see them (the photos)“.

Max Corstorphan

‘The new phone’: Why Erin Patterson changed numbers and phone

Ms Patterson told the court she then commenced conversations about changing her number and swapping from a damaged phone to an undamaged phone.

She explained she wanted to change her number as she had “security” concerns over Simon Patterson’s alleged behaviour towards her.

“I had been setting up the applications for my accounts on the new phone,” she said.

Then she explained she conducted a number of “factory resets” of the devices, one of which had been used by her son.

Max Corstorphan

Patterson withheld information from health authorities

Ms Patterson said she did not tell health authorities about the dehydrator.

She also did not tell health authorities that “supermarket ingredients” were probably not responsible for the illnesses after her beef Wellington lunch.

She said she felt “scared” and withheld information.

She had shared information about the Asian grocer, but didn’t share that she “knew it wasn’t the only possibility”, as she feared foraged mushrooms had made it into her lunch.

Max Corstorphan

Erin's admission: ‘I took the dehydrator to the tip’

Ms Patterson said she felt “scared” and “responsible” after realising death cap mushrooms could have made their way into her beef Wellington lunch from either an Asian grocer or from foraged mushrooms.

Ms Patterson dropped her kids off at school before she went to dispose of key evidence.

“I took the dehydrator to the tip,” Ms Patterson admitted.

“Child protection were coming to my house.

“I was scared of the conversation that might flow.

“I was scared they were going to blame me… for making everyone sick

“I was scared they would remove the children.”

Max Corstorphan

‘Is that how you poisoned my parents, using that dehydrator’

While discussing mushroom, concersation turned to Erin Patterson’s dehydrator.

“Is that how you poisoned my parents, using that dehydrator?” Ms Patterson claimed Simon Patterson asked.

“I said Of course not”

That’s when Ms Patterson said she worried “what if” death cap mushrooms “got in the container”

“Maybe that happened,” she said.

“Maybe that’s how this all….” she said.

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