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Open Food Facts Days 2025

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🇫🇷 Page en français c'est par ici

🍊Open Food Facts Days 2025 edition

We are excited to announce that our community gathering will take place again this year ! We hope that many of you will participate in this unique event dedicated to our community.

The event

Date: Saturday and Sunday 13-14th of September 2025

Place: Paris - France

Venue: Académie du Climat - 2 place Baudoyer – PARIS 4e

Metro stops: Hôtel de Ville (1 et 11) – Saint-Paul (1) – Pont Marie (7)

Map: https://osm.org/go/0BOd5fdpP

In the building, stay on ground floor - room "La Pépinière" (same as last year).

🎟️ Registration page: It is mandatory to sign up if you wish to join this weekend. Thank you. https://connect.openfoodfacts.org/event/open-food-facts-days-2025

 
Google maps

Plan of the venue/ our floor:

 

  • Let’s hear it from you ! Watch some of last year’s visitors share their experience of this event: playlist here

Collaborative Programme

Last year, we heard from so many contributors - it was awesome !

Please add if you're wanting to animate the activity/ if you are looking for someone to (co-) animate it. Also add it to the day on which you plan to attend. You can also send your ideas to: contact@openfoodfacts.org.

If you are doing a lightning talk, you can find the slide template here. Please copy-paste the document before filling it out. Once it's ready, please send it to manon@openfoodfacts.org so she can add it to the general presentation. Thank you !

🗓 Saturday 13th September

9:00-9.30 - ☕️ Registration/Badges & Coffee

9:30-9:45 - Opening of the weekend: program, tracks, spaces, rules, Scan Party/info stand

9:45-10:30 - Open Food Facts: Our mission, values, stats

10:30-10:50 - 🧊🔨 Icebreaker

10:50-12:30 - ⚡️ Lightning talks by members of the Open Food Facts community on various topics related to food and open data.

12:30-1:45 - 🥗 Lunch out (list of our recommendations in the neighbourhood coming soon)

2:00-3:00 p.m. - 💁🏻 Guest Speaker + Q&A

3:00-5:00 p.m. - 🥽 Workshops: 2 tracks available this year: Beginner & Open Everything Facts

5:10-5:20 p.m. - 📸 Group photo

5:25–5:40 p.m. – 🏆 Contributor trophees

5:40–6:00 p.m. – Time for a challenge (you'll need a smartphone for this one)

6:00–8:00 p.m. – Scan Party Apero

🗓 Sunday 14th September

9:30-10:15 - ☕️ Registration/Badges & Coffee

10:20-11:10 - ⚡️ Lightning talks by members of the Open Food Facts community on various topics related to food and open data.

11:15-11:35 - ‘What's new’: presentation of innovations at Open Food Facts

12:00-13:15 - 🥗 Lunch (everyone is responsible for their own lunch)

13:20-15:30 - 🥽 Workshops: 2 tracks available: Beginner & Open Everything Facts

15:30-15:50 - ☕️ Coffee break

16:00-16:30 - 🕺 Feedback from the weekend workshops + next steps

16:30-16:50 - 🎬 The final clap

Potential themes

  • Open Beauty Facts (+ researchers)
  • Brands and CSR
  • Data 4 Good - Cruelty KP

Lightning talks

Please write down if you'd like to present a short (under 5 minutes) presentation with the other members. To add, click on MODIFY :

Lightning talks 2025 proposals
Name Type Language Topic
ex. Leila general public Open Food Facts & Science: a presentation of how open data benefits public health research

Workshops ideas / proposals

This year, there will be two main tracks setting the tone for the weekend’s workshops :

  1. A Beginner’s Track: this is about leveling up as a contributor, discovering different aspects of the project and learning new skills ! This track is accessible to all levels, especially to newcomers
  2. An Open Everything Facts Track: in addition to Food, our community tackles other types of data, such as beauty products, generic products with a barcode, prices… this will be an occasion to dive into those !

✍️ Collaborative note-taking pad

Feel free to help take notes here during the workshops, so we can build on it later ! https://cryptpad.fr/pad/#/2/pad/edit/MCB90AhKk-maNHp-LnWvaACB/

Workshops 2025
Name Type Language Theme Registered participants
Ex. Leila Discovery/Creative/Doers Volunteer recognition: statuses, perks, skill developement (fill in your name if you want to participate)
John Gom Discovery/Creative English Ingredients. Should we create a live database to make it easier to contribute facts about ingredients?

Could more generally become "substances" to also cover materials used to make non-food Products and Packaging

James Addison Database/Data-Quality/Beginners English Idea: Daily Quality Emails - as a group, with one person operating the computer with a large monitor for the audience, walk through a few live product edits to inform people what the emails are like and how product quality in the database is improved.
John Gom Discovery/Creative English Food Logging: Walk through the draft standard for import / export of data to see if it makes sense and meets peoples' needs. Ideal for any re-users who are developing food logging apps.

Practical information

Language

Please note, as we are an international community, this event will be held in English & French.

Meals 🌮

This year, due to logistical reasons, each one will be responsible for their own lunch. There are plenty of restaurant options, or bakeries (boulangeries) nearby; we can eat either by the Seine, or in the courtyard of the Académie, or upstairs in our hall (if the weather is capricious).

Here some suggestions to grab a bite ☕:

La Buvette de l'Académie du Climat (on-site): vegetarian lunches, snacks, drinks

Compose - Hôtel de Ville (€10–20) @ 8 Rue Saint-Martin, 75004 Paris

LA COLLECTIVE PARISIENNE (€10–20 - formulas from 10€) @ 70 Rue François Miron, 75004 Paris

Beige Café (€1–10) @ 39 Rue François Miron, 75004 Paris, France

La Boulangerie du Marais (Closest bakery) (1-10€) @ 2 Rue de la Verrerie, 75004 Paris

Bagelstein • Bagels & Coffee shop (10-20€) @ 2 Rue de la Verrerie, 75004 Paris

Le Trumilou (French cuisine, 25€ formula (starter+main / main+dessert)) @ 84 Quai de l'Hôtel de ville, 75004 Paris

Ginsburger Vegetarian Superstar (Vegan burgers) (€10–20) @ 13 Rue du Roi de Sicile, 75004 Paris

La Perla (Mexican, 12,50€ formula (starter+main / main+dessert)) @ 26 Rue François Miron, 75004 Paris

L’As du Fallafel (most famous Libanaise of the Marais) (€10–20) @ 34 Rue des Rosiers, 75004 Paris

Chez Marianne (less famous, but also very good *it’s cheaper to take out than to eat in) (€20–30) @ 2 Rue des Hospitalières Saint-Gervais, 75004 Paris

Impérial House (Asian) (€10–20) @ 103 Rue Saint-Antoine, 75004 Paris

Bayan (Asian, big portions, good lunch offers) (€20–30) @ 35 Rue de Rivoli, 75004 Paris

La Bocamexa (Mexican, vegetarian options) (13,90€ formula) @ 12 Rue du Bourg Tibourg, 75004 Paris

Kaviary Delicatessen (fish toasts & bites) @ 60 Rue François Miron, 75004 Paris

Pain Vin Fromage (French fondues & raclettes, more for dinner) (€20–30) @ 3 Rue Geoffroy l'Angevin, 75004 Paris

Au Bourguignon du Marais (French cuisine) (€€ - 25€ formula (starter+main / main+dessert)) @ 52 Rue François Miron, 75004 Paris

Maison Bretonne (French crepes) @ 5 Rue de Rivoli, 75004 Paris

Tavline (Israeli restaurant) (€€) @ 25 Rue du Roi de Sicile, 75004 Paris

Le Peloton Café coffee shop (€1–10) @ 17 Rue du Pont Louis-Philippe, 75004 Paris

La Caféothèque coffee shop (€1–10) @ 52 Rue de l'Hôtel de ville, 75004 Paris

Bocamexa (Mexican, vegetarian options) (€12-20) @ 127 Rue Mouffetard, 75005, Paris (Website, OSM)

Bring a reusable water bottle/cup if you have one, to save some paper cups :)

Your belongings

IMPORTANT: This is an event that is open to the public. Therefore, we will have visitors come and go throughout the day. Please keep your belongings with you (we will try to secure a room that we could lock for luggage).

Mini-grants

The mini-grant application period is now over.

If you have been an active contributor to the project for the past few months/years and would like some help towards your trip, you can apply for a mini-grant via this online form. Funds limited.  

Join Team Event to help out

Last year we were so grateful to some of the visitors who signed up to this team. It helped us a whole load !  

So if you like getting involved in the organisation, please reach out. There are several missions, like keeping an Open Food Facts Discovery stand for the new-comers, helping with the coffee stand, maybe translation, facilitation within workshops, time-keeper, set-up, clean-up, etc.

SIgn up to “Team Event” by sending a message to Gala : gala@openfoodfacts.org.

Transportation

Transit within Paris

The easiest way to get around is either by walking, or taking public transportation. To travel, the most straightforward options are either to purchase an €2 Navigo Easy transit card from a ticket vending machine, or alternatively to purchase digital ticket(s) on your mobile phone with the free official Bonjour RATP App (if your mobile support NFC). In rare cases paper tickets may remain available, however these are being phased out this year (2025).

Prices are super easy: No matter where you go it's €2 if you take only bus, and €2.5 for subway, tram, RER. (one exception to this is arrivals from Orly airport; these have a separate fare)

Quick guide:

  • RER: these are regional trains that can carry you reasonably long distances within the city and the suburbs. Each RER train line has a single-character letter name (A, B, C, D, E)
  • Metro: each subway line is identified by a separate number (from 1 to 14)
  • Bus: I don't know, after more than, a year I never used them :)
  • Another handy app to get around is Citymapper.

Arriving by Train

Depending on your route of arrival, you will arrive at Monparnasse, Gare de Lyon, Gare du Nord or Gare de l'Est. Those train station are all well served by the subway (Metro). Good mapping apps should be able to provide you with a guidance to use the subway.

You probably want to avoid arriving at any of the following train stations, because they require an additional hour-or-so connection to a regional RER A or RER B train to reach central Paris:

  • Aeroport Charle de Gaule (abreviated CDG)
  • Marne la Vallee - Chessy (Disneyland Paris)
  • Massy Palaiseau
From the United Kingdom

Train travel from the United Kingdom is possible via the Channel Tunnel. However, travelers should note that because the United Kingdom is no longer part of the European Union, border security checks are in place, and you should check your travel documentation requirements in advance.

Eurostar -- the train operator in both directions through the Channel Tunnel -- offers discounted fares, with some restrictions such as no refunds, if you and your traveling party have flexibility on the time of departure. For details see the Eurostar Snap website.

Arriving by Plane

Paris has two major airports:

  • Aeroport Charle de Gaule to the North of the centre. This has a connection to the regional RER B train into central Paris.
  • Orly, to the South; from here you can take the OrlyVal to connect to the RER B, which will then bring you into Paris. There is also metro line 14, which now serves Orly (the fare is approximately €13).

Note that the Paris-Beauvais airport is primarily used by low-cost airlines. Transit from Paris-Beauvais airport into central by bus can take 2 hours or so.

Accommodation

Hotels in central Paris can be expensive during the Summer months; hostels provide an economical alternative, although with a potential reduction in privacy or customer service.

The orange emoji (🍊) indicates accommodation that OpenFoodFacts Days attendees have stayed in and can recommend.

Hostels

- MIJE Marais @ 6 rue de Fourcy, 75004 (OSM)

- The People Paris Marais @ 17 boulevard Morland, 75004 (OSM)

- HipHopHostels (various locations in Paris - nearest two are included below)

--- The Loft (Belleville) @ 70 rue Julien Lacroix, 75020 (OSM)

--- Oops Hotel (Latin Quarter) @ 50 avenue des Gobelins, 75013 (OSM)

Hotels

- Citadines Austerlitz (apartment hotel) @ 27 rue Esquirol, 75013 (OSM)

- Jack's Hotel @ 19 avenue Stephen Pichon, 75013 (OSM)

- Hôtel de la Places des Alpes @ 2 Place des Alpes, 75013 (OSM)


- Hôtel de la Porte Dorée(🍊 - good for cyclists) @ 273 avenue Daemuesnil, 75012 (OSM)

- ibis Budget Paris, Porte de Vincennes @ 2 avenue Léon Gaumont, 75020 (OSM)


- Hotel Jules et Jim (has two accessible-enabled rooms) @ 11 rue des Gravilliers, 75003 (OSM)

- Hotel Bellevue @ 39 rue de Turbigo, 75003 (OSM)

- Solar Hotel (🍊 eco-friendly and affordable; nb: limited/no availability remaining near event dates?) @ 22 rue Boulard, 75014 (OSM)

- Best Western - Hotel Aramis St-German (nb: limited/no availability remaining near event dates?) @ 124 rue de Rennes, 75006 (OSM)

- Hotel Jean-Bart @ 9 rue Jean-Bart, 75006 (OSM)

Camping

- Camping de Paris @ 2 Allée du Bord de l'Eau, 75016 (OSM)

Other Resources

Booking.com - Paris (a popular hotel reservation website, with a helpful map feature)

Laterooms.com - Paris (a website designed to gather affordable near-term accommodation options, also with a convenient map display)

OverPass Turbo - hotels with website URLs near the venue (a simple starter query using OpenStreetMap data - it returns too many results to list here individually)