My Treats ← Food Identity portal
Search restaurants About Methodology Contact
Food Identity by My Treats Researched
De 9 Straatjes / Jordaan · Amsterdam · Netherlands

Maijard Smashburgers Berenstraat

A fast casual smashburger spot in Amsterdam's Nine Streets, built around the Maillard reaction with Dutch beef on potato buns.

The essentials, at a glance

◐
Impact score
3 - Endorsed
→
Documented practices
Local sourcing
Low waste
Sustainable meat/fish

Style
Casual
Trendy
Quick service
Good to know
Terrace

The delicious details

Maijard takes a single cooking technique and builds an entire kitchen around it: the Maillard reaction applied to thin beef patties at maximum heat, producing a dark, lacy crust while the centre stays juicy. The name itself is a Dutch play on Maillard, and the open kitchen at Berenstraat puts the process on full display for guests.

The menu stays deliberately tight. Three burgers, loaded smashed potatoes and a custom citrus lager brewed with Jopen round out the offering. Founded by a group of friends in 2022, the Berenstraat outpost in De 9 Straatjes followed the original Rozengracht location, adding breakfast service from ten in the morning.

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

Three smashburgers — beef, chicken, veggie — built on the Maillard reaction and pressed on high heat to develop a caramelised crust. House-made buns, sauces and cheese. Sides of loaded mashed potatoes and fries; craft lager, lemonade, iced tea. Halal certified.

Dietary options
Vegetarian options
Halal
Impact score
How this restaurant rates
3 - Endorsed

Maijard sources its ingredients through Jimmy Loves Food, a local Dutch distributor focused on connecting restaurants to local producers, and reports that close to all ingredients are sourced within the Netherlands. Buns, sauces and cheese are prepared in house, and the kitchen states that all food is either homemade or made exclusively for the restaurant.

Daily burger production is deliberately capped to limit food waste, and the founders report better-than-market pay and conditions for staff alongside year-end donations to zero-waste associations.

The impact dimensions
Local & direct sourcing✓
Seasonal cooking
Low waste & circular practices✓
Sustainable animal products✓
Social impact

Sourced through Jimmy Loves Food, a local distributor; close to 100% of ingredients reported as Dutch, though underlying producer farms remain unnamed.

Sourced through Jimmy Loves Food, a local distributor focused on local sustainable producers. The restaurant reports close to 100% of ingredients are sourced from the Netherlands and that recipes are built around what local producers offer.

Chicken is described as from 'the first and only 5 star chicken farm in the Netherlands', and beef as 'locally sourced', though no specific farms are named. Buns, sauces and cheese are prepared in house.

Strongest sourceRestaurant submission

Fixed three-burger menu with no seasonal rotation; kitchen reports 75%+ seasonal ingredients, reflecting ingredient-level sensitivity rather than seasonal menu changes.

The web-visible menu is a fixed, limited offering of three burger types with no seasonal rotation or seasonal specials evident from social media, editorial coverage, or review platforms.

The restaurant reports that more than 75% of ingredients are seasonal and that recipes are built around what is in season from local producers. On a fixed three-burger format, this reflects ingredient-level seasonal sensitivity rather than a structural seasonal menu programme.

Strongest sourceRestaurant submission

Daily burger production deliberately capped; year-end donations to zero-waste associations.

The restaurant operates with a deliberately capped daily burger production as a structural food-waste reduction measure. This volume limit is framed as an explicit waste-avoidance choice and a defining feature of the kitchen's concept.

At year-end, the restaurant reports donating to zero-waste associations, though no specific partner is named.

Strongest sourceRestaurant submission

Beef and chicken sourced through Jimmy Loves Food; chicken from a named '5 star' welfare farm in the Netherlands, beef locally sourced; halal certified.

The restaurant serves beef and chicken burgers. Chicken is described as sourced from a 'five star chicken farm in the Netherlands', which references a welfare tier, though the farm is not named and no recognised certification such as Beter Leven is documented. Beef is described as 'locally sourced' without a named butcher or farm.

The restaurant identifies Jimmy Loves Food as its supplier and reports that meat is always sustainably sourced. Halal status is confirmed via the restaurant's own TikTok content.

Strongest sourceRestaurant submission

Reports better-than-market pay and working conditions for staff; year-end donations to zero-waste associations.

The restaurant states it offers better-than-market pay and working conditions for staff. The claim lacks supporting specifics such as a living-wage statement or documented apprenticeship programme.

The restaurant also reports year-end giving to zero-waste associations, though no specific charitable partner is named. These claims are not independently corroborated.

Strongest sourceRestaurant submission
Visit & practical info
Address, price, and more
Address
Berenstraat 20HS, 1016 GH Amsterdam, Amsterdam, Netherlands
Open in Google Maps ↗
Price
€
Format
Casual walk-in, three fixed burgers
Hours
Monday10:00–19:00
Tuesday10:00–19:00
Wednesday10:00–19:00
Thursday10:00–19:00
Friday10:00–20:00
Saturday10:00–20:00
Sunday10:00–19:00
Style
Casual
Trendy
Quick service
Good to know
Terrace
Web
instagram.com
Social
@maijardsmashburgers
Reviewed by My Treats
Last reviewed 27 Apr 2026
Reserve
Link copied
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
—
How this dimension works
—
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.
About• Contact• Methodology•