About Us
The PostHarvest Story
John Shannon, CEO of PostHarvest, currently lives in clean green New Zealand with his wife Grace Shannon and beautiful baby girl called Pepper. Growing up he was often picking fruit at his friend’s family farm in the summer holidays. He saw first-hand how much fresh produce would overripen in storage and be thrown away before it had the chance of being eaten.
It wasn’t until many years later that he found this issue wasn’t an isolated occurrence but the entire world was dealing with this problem. Nearly half of all fresh produce is lost before it even meets the markets globally. That produce is thrown into landfills, begins to rot, and creates methane. This creates a larger carbon footprint than the entire airline industry, costing our planet over $1 trillion dollars in losses each year.
Our mission is to take on this global problem and the damage it causes the planet. PostHarvest Technologies has developed a product which can measure essential ripening gases and compounds at a micro level. By being able to measure and assess any changes at these micro levels, PostHarvest Technologies can predict when produce will ripen up to 9 months in advance. This system allows cool room operators to send out produce on time, every time – automating systems to create an ideal storage environment for fresh produce, with the aim of cutting down global cool room losses from 30% down to 5%.
After winning five major international awards, grants and recognition PostHarvest is now undergoing mass production of its units to supply every major food operator in the world with its technology.
With technology and education, together we can halve food waste by 2030

Board of Directors

Ross Shannon
Director

Michael Van Tinteren
Director

John Shannon
Director

Josh Dunford
Director
The PostHarvest Team

John Shannon
CEO

Josh Dunford
General Manager

Michael Potas
Head of Engineering

Bram Horton
Head of Software

Neil Burmester
Customer Experience
& Online Learning

Brendon Pongia
Business Development Manager

Matt Sanasi
Head of Video

Mitch Denton
Digital Content & Sales
Our Story
John Shannon (The CEO of PostHarvest Technologies) grew up in clean green New Zealand, often picking fruit at his friend’s family farm in the summer holidays. He saw first-hand how much fresh produce would overripen in storage and be thrown away before it had the chance of being eaten.
It wasn’t until many years later when he found this issue wasn’t an isolated occurrence but the entire world was dealing with this problem. Nearly half of all fresh produce is lost before it even meets the markets globally. That produce is thrown into landfill, begins to rot, and creates methane. This creates a larger carbon footprint than the entire airline industry, costing our planet over $1 trillion dollars in losses each year.
Our mission is to take on this global problem and the damage it causes to our earth. PostHarvest Technologies has developed a product which can measure essential ripening gases and compounds at a micro level. By being able to measure and assess any changes at these micro levels PostHarvest Technologies can predict when produce will ripen up to 9 months in advance. This system allows cool-room operators to send out produce on time, every time – automating systems to create ideal, longer lasting produce with the aim to cut down global fresh produce waste from 45% down to 5%.
After winning four major international awards, grants and recognition PostHarvest is now undergoing mass production of its units to supply every major food operator in the world with its technology.
With technology & education, together we can halve food waste by 2030

Board of Directors



Our Team








Register your interest with the
team today

This is a really innovative product that has the potential to have a significant impact on food waste, locally and globally. The real-time nature of the product and its ability to provide information to multiple points in the supply chain, in parallel with its accuracy, are really prominent features. ”

Best in Class 2020