4 - Recognised
i
SLA partners with Vytal, a deposit-free reusable container system recognised by the Dutch Ministry of Infrastructure and Water Management as a case study for reducing single-use plastic in hospitality. Where disposable packaging is necessary, the restaurant uses biodegradable materials — cardboard, pulp, and recycled plastic. Juices are served in reusable glass bottles, and the central kitchen uses reusable containers in its supply chain.
Vegetables and fruit are sourced at least 90% organic from Dutch suppliers, with all meat and poultry stated to be 100% organic by independent sources. The menu's plant-forward composition, with roughly 75% of dishes fully vegan, reduces the environmental footprint of each meal. Seasonal rotation aligns ingredient sourcing with Dutch growing cycles.
The impact dimensions
Low waste & circular practices✓
Sustainable animal products✓
Named local suppliers include Sapje (juices), De Vegetarische Slager (plant protein), and chicken from Oostkappelle; at least 90% of vegetables and fruit are organic.
SLA sources as much as possible from certified organic suppliers in the Netherlands, with at least 90% of vegetables and fruit reported as organic. Named suppliers include Sapje (cold-pressed juice producer), De Vegetarische Slager (plant-based protein), and chicken from Oostkappelle in Zeeland. Beer is sourced regionally and coffee is fair-trade.
The central kitchen model in Amsterdam provides a structural foundation for Dutch-first sourcing. However, no comprehensive supplier list is published, and the proportion of ingredients that are demonstrably local versus imported is not quantified; avocados and some other items are acknowledged as imported.
Seasonal menu rotation at minimum biannual (spring/summer and autumn/winter), with seasonal products described as a stated priority.
SLA operates a seasonal menu rotation, with the current offering labelled 'Spring/Summer menu' described as 'filled with seasonal products purchased sustainably and fairly, and as much as possible from local sources.' Amsterdam Flavours confirms the restaurant 'constantly strikes the balance between quality, locality and the seasons.'
The rotation occurs at least biannually (spring/summer and autumn/winter), with seasonal products as a stated priority. The central kitchen model supports daily preparation flexibility. However, no archived menus documenting the specific rotation history are publicly available.
Partners with Vytal for reusable containers with a 99.3% return rate; uses biodegradable packaging where disposables are needed; no documented food-waste or energy metrics.
SLA partners with Vytal, a deposit-free digital reusable container system, featured as a case study by the Dutch Ministry of Infrastructure and Water Management. The Vytal system uses QR-coded containers with a 99.3% global return rate. Where disposable packaging is necessary, SLA uses biodegradable materials — cardboard, pulp, and recycled plastic. Juices are served in reusable glass bottles.
The central kitchen uses reusable containers in its supply chain and consults suppliers on further packaging reduction. Independent sources mention composting and biodegradable materials. However, specific food-waste metrics, waste reduction targets, and energy practices (solar, renewable energy) are not documented, and no formal waste or environmental certification (SRA, Green Key) has been identified.
Chicken sourced from Oostkappelle in Zeeland (100% organic per independent sources); salmon on menu with no sourcing information or certification.
SLA reintroduced meat to the menu in January 2024 after operating as fully vegetarian. According to independent editorial coverage, all meat and poultry is 100% organic, and all grain and dairy products are organic. Chicken is sourced from Oostkappelle in Zeeland.
SLA's own FAQ notes that not all ingredients carry formal organic certification. Salmon appears on the menu (Sesame Ginger Salmon Bowl) with no sourcing information, and no MSC, ASC, or equivalent fish certification has been identified. No specific butcher or fishmonger names are published.
Community workshops on food-as-medicine, mindful eating, and gardening; staff complimentary menu access; co-founder cookbook on plant-based cooking.
SLA positions itself as 'forward-thinking, impact-driven' with a mission to 'make the world a bit more healthy and sustainable.' The restaurant organises community workshops covering food-as-medicine, mindful eating, and home gardening initiatives.
Co-founder Nina Pierson published a cookbook ('SLA: taste the magic of veggies') to inspire healthier eating at home. SLA offers structured detox day packages and provides complimentary menu access to staff.
Approximately 75–80% vegan menu (15+ vegan dishes out of ~19–21 total) with 90%+ vegetarian offerings; plant symbol marks vegan items.
SLA self-describes as 'mostly plant-based and often vegan and gluten-free.' Independent analysis by RestauPlant identifies 15+ vegan dishes and 3+ vegetarian dishes out of approximately 19–21 total menu items, putting the menu at roughly 75–80% vegan and over 90% vegetarian. Uber Eats confirms the vast majority of dishes are plant-based, with only a few items containing animal protein (chicken in Caesar salad, Greek Gyros, Sesame Ginger Salmon Bowl).
Vegan items are marked with a plant symbol. Plant-based protein alternatives (De Vegetarische Slager) are available, and desserts include vegan options. Vegetables are unambiguously the centre of the kitchen's identity, with animal proteins as minimal, optional additions. Lonely Planet describes SLA as a 'super-stylish salad bar.'
