The incident happened just before 2.15pm this afternoon (Wednesday, November 15) on the A1184.
It is believed that the lorry had to brake suddenly, causing the spillage to cover the cab of the lorry and the road itself.
Follow our live blog of events here.
A lorry spill has seen mash potato left all over a road in Bishop#8217;s Stortford.
The driver of the vehicle confirmed to police officers that the mash potato was animal feed.
Highways officers remain at the scene with a video showing them working to sweep up the spillage.
NEXT STORY: Developers of Bishop#8217;s Stortford#8217;s Goods Yard car park #8216;hope opening date will be announced soon#8217;