Mia Hartwell - Sustainability marketing success in the food sector
When we talk about sustainable marketing, we often fixate on the digital grid, electric delivery fleets, or supply chain auditing. But there is a massive, tangible monster we interact with multiple times a day, often without a second thought: the food on our plates.
I recently sat down with Mia Hartwell, a brand and sustainability communications consultant specialising in the food sector. Mia has spent her career working with iconic names like Jordans Cereals, a brand legendary for its early commitment to nature-friendly farming, and today, she helps food brands navigate the tricky intersection of commercial marketing and planet-saving initiatives.
Our conversation revealed why the food system is the absolute ultimate leverage point for anyone wanting to make a dent in the climate crisis.
The Flip of the Switch: A Critical Conversation About Plastic
Mia did not start her career with a rigid sustainability mandate. She was a pure marketeer, driven by a deep love for food, brand building, and consumer innovation. But a single, brief conversation behind the scenes fundamentally disrupted her career trajectory.
"I was working in brand innovation, and I had a critical conversation with a colleague one day about packaging," Mia recalls. "Packaging in food is so tangible. We eat breakfast, we unpack lunch, it is everywhere. But I had not given much thought to what it was actually made of."
Her colleague looked at her and said plainly: "You do know that this packaging just gets burnt, right?"
She was referring to the flexible, non-recyclable plastics holding the product. For Mia, that was the ultimate catalyst. "An absolute switch flipped," she says. "I realised that as food manufacturers, we are producing incredible food that can be grown sustainably, but the packaging footprint is devastating our world. I needed to pivot from being a sole marketeer looking after a brand’s metrics to seeing brands as vehicles for real global change."
The Food System: The 30% Invisible Giant
If you want to solve global sustainability issues, you have to look at the food industry. Why? Because the data is staggering:
- The Emissions Profile: Food production, encompassing agriculture, processing, manufacturing, and global transport, contributes to roughly 30% of greenhouse gas emissions globally.
- The Symbiotic Risk: While food production actively drives climate change, climate change is simultaneously destroying the predictability of agriculture. Floods, droughts, and degraded soil mean that without sustainable restructuring, food brands will not have products to sell in the near future.
- The Social & Health Impact: Sustainability is not just carbon; it is people. Currently, about 65% of the UK population is living with overweight or obesity, and chronic diseases are rising. The food system touches land use, water pollution, biodiversity loss, and human health every single day.
Are Marketers the "Evil Masterminds"?
With statistics like these, it is easy to point fingers at marketing teams for driving overconsumption of unhealthy, highly packaged foods. The media often paints food marketers as malicious geniuses plotting to hook the public on addictive products. Mia, however, vehemently rejects this narrative.
"I have never been in a product development room where people are sitting there plotting to cause widespread obesity or environmental collapse," Mia says candidly. "People in this industry are incredibly well-intentioned. Marketers want to delight consumers. But the issue is unintended consequences."
When optimisation is focused solely on taste, shelf-life, and immediate commercial profitability, the long-term systemic impacts are frequently overlooked.
In Part 2, we will explore how food marketers can balance the current intense cost-of-living crisis with long-term brand resilience, and why staying silent about your green credentials, "greenhushing", is a massive commercial mistake.










