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Leiden Bio Science Park · Leiden · Netherlands

LAB071

A vegetable-forward bar and kitchen in Leiden's Bio Science Park, set in a former university laboratory, where seasonal produce leads and meat or fish play only a supporting role.

The essentials, at a glance

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Impact score
3 - Endorsed
→
Documented practices
Local sourcing
Seasonal cooking
Plant-forward menu

Style
Café
Casual
Cuisine
International
Good to know
Terrace
Bar

The delicious details

LAB071 is a bar and kitchen in the heart of Leiden's Bio Science Park, housed in the former anatomical laboratory of Leiden University. It was opened by chef Dennis van Winkel and three partners as a relaxed gathering place for the researchers, students and neighbours who fill the surrounding campus.

The kitchen puts vegetables in the lead role. Dishes are built around produce and the seasons, with meat or fish available only as an optional side for those who want it. Local growers, in particular the Leiden farm Oogst, supply much of the vegetable range, and the chef seeks out Dutch and organic products wherever the season allows.

The setting keeps the building's laboratory heritage in its interior, while a terrace opens onto the green surroundings of the park for a calm, informal escape from the working day.

Menu
What's on the table, and what's left off

At LAB071 the menu is fully vegetarian, with roughly four in five dishes available in a vegan version, so vegetables carry the plate rather than sit on the side. The cooking is playful and produce-led, from breaded cauliflower with a barbecue glaze to a changing line-up of small seasonal plates. Guests who wish can add Dutch-sourced meat or fish. On weekend evenings the kitchen serves the LAB menu, a four- or five-course local and seasonal set built around vegetables from nearby growers.

Cuisine
International
Dietary options
Vegetarian options
Vegan-friendly
Dairy-free options
Impact score
How this restaurant rates
3 - Endorsed

LAB071 combines local and seasonal vegetable sourcing with a fully plant-led menu, a kitchen built around produce rather than protein.

Most of its vegetables come from local growers, above all the Leiden farm Oogst, and the chef actively seeks Dutch and organic produce. The cooking follows the seasons, working with small batches of seasonal produce and changing dishes as availability shifts through the year.

The menu is entirely vegetarian with the large majority of dishes offered in a vegan version, so vegetables lead every plate. The restaurant's plant-forward approach is recognised with the gold LEKKER VEGA mark from the Dutch Vegetarian Association.

The impact dimensions
Local & direct sourcing✓
Seasonal cooking✓
Low waste & circular practices
Sustainable animal products
Plant-forward menu✓

Named Leiden farm (Oogst) leads vegetable sourcing; meat and fish always from the Netherlands.

Independent food-trade coverage and the restaurant's own account both identify the Leiden farm Oogst as the lead supplier of local vegetables, forming the basis of the weekend LAB menu. Specific vendors are named—Bas Boer for nuts.

The chef prioritises Dutch products, with meat and fish always sourced from the Netherlands. While not all vegetables are sourced locally year-round due to seasonal constraints, the documented sourcing intent and named suppliers support strong local engagement.

Strongest sourceoutofhome-shops.nl ↗

Small-batch, rotating menu follows seasonal availability; weekend LAB menu explicitly built around seasonal local produce.

The chef works with small batches of seasonal produce, serving each until it runs out and building a rotating menu around availability. The weekend LAB menu is explicitly constructed around seasonal local vegetables.

Seasonality is a documented, consistent kitchen method — not a passing mention — supporting consistent engagement with seasonal ingredients throughout the year.

Strongest sourceoutofhome-shops.nl ↗

Small-batch, cook-until-depleted practice and in-house baked goods reflect modest overproduction control.

The kitchen's small-batch approach, serving dishes until stock runs out, and production of homemade baked goods suggest overproduction minimisation built into the working method.

Strongest sourceoutofhome-shops.nl ↗

Meat and fish available only as optional sides from Dutch suppliers.

The menu is fully vegetarian with meat and fish available only as optional sides on request. Both are sourced from the Netherlands, with the chef actively seeking organic products from suppliers.

Strongest sourceoutofhome-shops.nl ↗

Entire menu is vegetarian; approximately 80% of dishes available vegan. Third-party verified by the Dutch Vegetarian Association's gold LEKKER VEGA mark.

The entire menu is vegetarian with roughly 80% of dishes available in a vegan version, and vegetables are explicitly central to every plate. Meat and fish are available only as optional accompaniments.

The restaurant holds the gold LEKKER VEGA keurmerk from the Dutch Vegetarian Association. The Gold criteria require a 100% vegetarian menu with at least 50% plant-based options—a threshold this menu exceeds substantially.

Strongest sourcevegetariers.nl ↗
Sourcing signals
✓
Direct named-farm sourcing

Local vegetables sourced from Leiden farm Oogst, which anchors the weekend LAB menu; nuts from market vendor Bas Boer; meat and fish from Dutch suppliers.

Visit & practical info
Address, price, and more
Address
Poelweteringpad 5, 2333 BM Leiden, Leiden, Netherlands
Open in Google Maps ↗
Price
€€
Format
À la carte and weekend LAB seasonal menu, terrace seating
Hours
Monday10:00–22:00
Tuesday10:00–22:00
Wednesday10:00–22:00
Thursday10:00–22:00
Friday10:00–22:00
Saturday12:00–22:00
Sunday12:00–22:00
Style
Café
Casual
Good to know
Terrace
Bar
Web
lab071.nl
Reserve a table
Reviewed by My Treats
Last reviewed 3 Jul 2026
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How we score
The My Treats impact scale

Every restaurant is assessed against SEERO, our six-dimension sustainability framework — covering sourcing, seasonality, waste, animal products, social impact, and plant-forward cooking. Each finding is weighted by how strongly it is corroborated. The combined result is translated into a planet rating from 1 to 5.

The five levels

SEERO is an acronym for Starting, Engaged, Endorsed, Recognised, Outstanding:

Starting First verified signals of sustainable practice.
Engaged Credible practice across two dimensions.
Endorsed Meaningful practice across three or more dimensions.
This place
Recognised Strong practice across four or more dimensions, with independent corroboration.
Outstanding Top-tier practice, confirmed by recognised third-party audit.

How a level is reached. Each level needs two things together: a minimum number of dimensions covered, and a minimum overall strength of evidence across them. A dimension only counts once its evidence is specific and substantiated — a passing mention doesn't qualify. Meeting only one of the two keeps a restaurant a level lower.

Ratings of four or five planets require human validation and, at the top tier, an external audit. Scores are based on publicly available evidence and restaurant submissions at the time of assessment.

Full methodology→
Impact dimension
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How this dimension works
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How evidence is weighted
Self-declared Stated by the restaurant on its website, menu or in a submission. Plausible, but not yet independently corroborated.
Researched Found through independent research; one credible third-party source backs the claim.
Vouched Corroborated across more than one independent source. Some gaps may remain.
Audited Fully corroborated across independent sources or by a recognised third-party certification.
What the sourcing checkmarks mean
✓ Full check — independently verified: corroborated across more than one source, or audited / third-party certified (vouched or audited).
✓ Light check — self-declared or from a single source. Not yet independently verified.
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