Sustainability in Catering – Compostables, Local Sourcing, zero Waste
Catering has always been about abundance—plenty of food, full tables, happy guests. But behind the scenes, abundance can easily turn into excess, and excess into waste. Over the past decade, the industry has faced a reckoning: how do we keep the joy and generosity of catering alive while respecting the planet that feeds us? The answer lies in one word that’s reshaping kitchens everywhere—sustainability.
In the early days of my career, especially on cruise ships, we measured success by how much food we could produce in record time. Buffets groaned under the weight of variety, and leftovers were simply part of the job. Today, that mindset feels outdated. Modern catering is about precision, not overproduction. It’s about creating memorable experiences with minimal impact—serving food that tastes good and feels good to serve.
The most visible shift has come through compostables and eco-packaging. Plastic cutlery and polystyrene trays are fading fast, replaced by bamboo forks, sugarcane plates, and cups made from corn starch. It’s a small change that makes a big difference—each item that decomposes naturally is one less piece of waste destined for the landfill or ocean. At Maarte Catering, for example, switching to compostable serviceware wasn’t just a branding decision; it was a responsibility. Clients notice when you align values with action. The key, though, is understanding that compostables work best as part of a wider waste strategy—not a license to stay careless.
That brings us to the heart of sustainability: local sourcing. It’s one of the simplest, smartest ways to reduce environmental impact. Food that doesn’t travel halfway across the world automatically carries a smaller carbon footprint. But beyond the numbers, sourcing local builds community. It keeps money in the region, supports small producers, and gives chefs access to fresher, more flavourful ingredients. When you buy your vegetables from the grower down the road, you’re not just purchasing produce—you’re building relationships that feed both kitchen and culture.
In practice, local sourcing also encourages creativity. When you cook with what’s in season, your menus naturally evolve. Instead of imported asparagus in winter, you might feature roasted pumpkin or caramelised cabbage. That rhythm of the seasons adds authenticity—and diners can taste it. It’s cooking that feels grounded, both literally and figuratively.
Another cornerstone of the sustainable kitchen is zero waste cooking—a philosophy that treats every ingredient with respect. It’s about rethinking what we once threw away. Vegetable peels become stock; stale bread becomes breadcrumbs; herb stems flavour oils. Even trimming from meats or fish can be turned into terrines or croquettes. The goal isn’t perfection—it’s mindfulness. Every kilogram saved is a quiet victory.
One of my favourite examples of zero waste creativity is the “root-to-stem” approach for vegetables and “nose-to-tail” for meats. Beet greens sautéed with garlic taste as good as spinach. Citrus peels can be candied or infused into syrup. Chicken bones make incredible broth. When you approach ingredients this way, you start to see waste as opportunity. It’s a mindset that rewards innovation and frugality in equal measure.
For caterers, sustainability also extends beyond the plate. It’s in how we manage transport, refrigeration, and energy. Choosing hybrid delivery vehicles, efficient ovens, and digital systems that reduce paper use all contribute to a cleaner operation. Even small adjustments—like planning delivery routes more efficiently or reducing idling times—add up over hundreds of events.
Of course, sustainability isn’t just a trend; it’s now an expectation. Clients increasingly ask where ingredients come from, what packaging is used, and how waste is handled. For caterers, this is a chance to lead rather than follow. Transparency builds trust, and when guests see you separating compost bins or describing a dish’s local origins, they become part of the story too.
The beautiful irony of sustainability is that it doesn’t take away from hospitality—it enhances it. Food that’s grown nearby, served thoughtfully, and finished responsibly simply tastes better because it carries purpose. There’s pride in knowing nothing on the plate—or off it—goes to waste.
Chef’s tip: If you’re hosting an event, plan your menu around ingredients that can serve double duty. For example, roast whole pumpkins for salad and use the seeds for garnish. Save herb stems for pesto or infused oils. And if you’re using compostables, make sure there’s an actual compost bin nearby—because sustainability only works when it’s followed through.
In the end, sustainable catering isn’t about sacrifice—it’s about stewardship. It’s proof that good food can nourish not just people, but the planet too.
