4 - Recognised
i
Local and direct sourcing defines the operation. Over 300 varieties of vegetables, herbs and fruits are grown in the restaurant's own greenhouse and gardens in Amsterdam and the Beemster polder, supplying roughly 80% of the menu. External ingredients come from organic farms in the same region. Seasonal cooking is structural: the menu changes weekly according to what the gardens produce, a practice in place since 2001. The kitchen is built around plants, with vegetables forming the centrepiece of every course and fish or meat appearing in roughly one dish in ten; Gault & Millau named De Kas Vegetable Restaurant of the Year in 2023. Low-waste practice is embedded in the growing cycle, where precise daily harvesting matched to the menu eliminates surplus. Animal products are non-industrial and responsibly sourced. Working conditions prioritise staff wellbeing: kitchen staff work regular weeks rather than the extended hours common in fine dining, and the restaurant hosts annual cooking sessions for local schoolchildren.
De Kas holds a Michelin Green Star and a Michelin star, is listed in the We're Smart Green Guide (number 88 in the 2025 Top 100), and carries 16.5 points in Gault & Millau with a Vegetable Restaurant of the Year distinction.
The impact dimensions
Low waste & circular practices✓
Sustainable animal products✓
Over 300 varieties of vegetables, herbs and fruits are grown on-site in Amsterdam and the Beemster polder, supplying approximately 80% of the menu; external ingredients come from organic farms in the same region.
De Kas grows over 300 varieties of vegetables, herbs and fruits in its own greenhouse and gardens at Park Frankendael (Amsterdam) and a second plot in the Beemster polder, supplying approximately 80% of the menu. Harvesting follows a daily cycle: produce is picked in the morning and used for lunch and dinner the same day.
The remaining ingredients are sourced from organic farms in the Beemster region, with the requirement that all external sources be organic and preferably local. Five farmers work the Beemster land. Independent validation comes from the We're Smart Green Guide (number 88 in the 2025 Top 100), the Michelin Green Star, and Gault & Millau.
The menu changes weekly according to what the gardens produce, a practice in place since 2001.
The menu at De Kas changes weekly according to what the gardens produce, a practice in place since the restaurant opened in 2001. Each week's courses are built around the seasonal harvest, without a fixed a la carte menu.
This deeply seasonal approach is confirmed by the We're Smart Green Guide, Michelin Green Star, Gault & Millau, and editorial sources including Four Magazine and The Green List.
Precise daily harvesting matched to the menu eliminates surplus produce; minimal food waste is achieved through weekly menu rotation.
De Kas eliminates surplus produce through daily harvest-to-plate cycles precisely matched to the menu. Minimal food waste is achieved through precise daily sales tracking and weekly menu rotation.
The Circular Economy for Food platform describes the operation as a closed-loop food service with zero-waste goals, referencing soil regeneration and biodiversity initiatives.
Roughly 10% of courses include fish or meat; the restaurant describes these as 'sustainable, not industrial'.
De Kas includes fish and meat in approximately 10% of courses. The restaurant's approach emphasises quality over quantity, with animal products secondary to vegetables. Example dishes include grilled catfish and venison cannelloni.
The Green List describes these animal products as 'sustainable, not industrial', a characterisation confirmed by multiple editorial sources.
Kitchen staff work regular weeks with alternating three- and four-day schedules; community engagement includes annual cooking demonstrations for schoolchildren.
Fair employment practices are independently documented: the kitchen moved to 42-hour contracts with alternating three- and four-day work weeks to eliminate systematic unpaid overtime. Chef Jos Timmer emphasises that kitchen staff work normal weeks, unusual in fine dining.
Community engagement includes annual cooking demonstrations for schoolchildren from the surrounding area, and park visitors are welcome to observe garden operations. Head chef Savannah Hagendijk describes a wellbeing monitoring practice, and the kitchen team shows diversity in hiring.
Vegetables form the foundation of every course; fish or meat appears in only 10% of dishes. Fully vegetarian and vegan menus available on request.
Vegetables are unambiguously the centre of De Kas's kitchen identity. The chefs state that only approximately 10% of courses include fish or meat, always as a secondary component. The menu is built around the daily vegetable harvest, with plants forming the foundation of every course.
This plant-forward positioning is extensively validated by independent sources: Gault & Millau named De Kas Vegetable Restaurant of the Year in 2023; the We're Smart Green Guide ranks it number 88 in the 2025 Top 100 vegetable restaurants; and the Michelin Green Star citation highlights the vegetable focus. Fully vegetarian and vegan menus are available on request.
Sourcing signals
✓
Low-impact beverage program
Over 300 varieties of vegetables, herbs and fruits are grown on-site in Amsterdam and the Beemster polder, supplying approximately 80% of the menu. Produce is harvested daily and used the same day, confirmed by We're Smart Green Guide, Michelin Green Star, Gault & Millau, and editorial sources.
The wine and beverage programme focuses on minimal-intervention and natural wines, featuring Dutch selections alongside international choices, curated by Au Paradis.
