The Brighton and Hove-based company, which also operates two eponymous cafés and seafront restaurant Lucky Beach in the city, is B Corp-certified.
It says it is continuing to explore commercially viable sustainability initiatives that can offset the carbon footprint of its sole London restaurant, directly reduce emissions and support a “prosperous circular economy”.
Khao Bird’s Brewer Street site has already taken steps to reduce and offset the carbon impact associated with running a restaurant.
Head chef and co-owner Luke Larsson serves a menu of northern Thai barbecue dishes inspired by his travels around Northern Thailand.
The restaurant works directly with the company’s farm in Aberdeenshire, which supplies produce including Scottish lamb, honey and seasonal fruits such as heritage apples and plums.
It also sources produce from a Sussex farm, the 3,500-acre Knepp rewilding estate and vegetable and herb supplier Shrub, helping the kitchen reduce its reliance on imported ingredients.
Khao Bird has been monitoring its carbon metrics, recording a reduction in energy usage between 2024 and 2025 and a 12% increase in the proportion of waste diverted from landfill for recycling.
Redroaster says it uses 100% renewable energy across its businesses, with all deliveries made by electric vehicle. Its coffee shops also use reusable coffee buckets, biodegradable takeaway cups and repurposed cardboard for coffee packaging.
The group has an overall B Impact score of 91.3, above the minimum requirement of 80 needed to achieve B Corp certification.
Overseen by its board of directors, Redroaster’s 2026-30 Climate Action Plan includes increased water monitoring, a target to reduce energy consumption by 10%, a greater commitment to plant-based menu options and more stringent waste-management practices.
The group says its venues have also been developed with circularity in mind. Discarded coffee sacks are turned into bags for customers, while tabletops are made using recycled milk bottles at Redroaster and reclaimed wood at Khao Bird.
Restaurateur Mike Palmer and Larsson opened Khao Bird in November 2025 following a year-long residency above The Globe Tavern in Borough Market.
The two-floor restaurant and bar occupies a site previously home to Soho’s last remaining adult cinema.