While reports have not revealed the man's identity, Plant Based News believes it was an anti-vegan Youtuber named sv3rige, who is also known for being a flat-Earther.
The YouTuber was quizzed by police, who attended the scene after attendees of the Vegan Food Festival complained. sv3rige chewed on the flesh as he was questioned, refusing to reveal his name. Police later confirmed no arrests were made.
'Vegans hate nature'
Writing on social media, sv3rige said: "The media lied that I threw meat at the organization, that never happened.
"They had no reason to call the police and they knew that so they made up a lie.
"As you can see, we were attacked by the vegans. Physically and verbally. They hate nature."
GRAPHIC: sv3rige gnaws on the raw meat
'A shocking sight'
A spokesman for the Vegan Food Festival said: "While it is of course not forbidden to eat raw meat, it was of course a shocking sight because there was a puddle of blood and fat.
"Besides, there were lots of elderly people and children. At that time a special children’s programme was going on.
"It was a weird protest by the gentleman. This festival is about having fun and sharing new experiences."