Flowers & Sours

Flowers & Sours is registered as a business on Coolhaveneiland in Rotterdam, located at Coolhaven 148A, 3024 AL Rotterdam. The current status of the location is ambiguous. Some listings show address details and opening hours, while one platform indicated the business was reported closed in September 2024. No official closure notice was found in the researched information. Therefore, caution is advised regarding any current interpretation of the location’s status.

In 2016, the venture was described as a collaboration between three Rotterdam women: Maidie van den Bos, Sanne Zwart, and Cathy van den Berg. They brought their individual activities together under one roof at the Coolhaven. This was not just about sales or hospitality, but also about production, presentation, and sharing knowledge about food and drink.

Maidie van den Bos was associated with Bloesembar. Her work focused on flowers, plants, and herbs used for syrups, cocktails, and sorbet. Sanne Zwart worked with Ferme Kolen on fermenting vegetables, including kimchi and sauerkraut. Cathy van den Berg worked through Friscat on photography, marketing, and communication, with experience in food photography and brand development within sustainable and green lifestyles.

The concept of Flowers & Sours was described as a food lab, tasting room, workspace, and laboratory. The emphasis was on the story behind the products and how they were made. As such, the building was not separate from the production processes; rather, it made these processes visible to visitors, participants, and fellow entrepreneurs.

For coffee lovers, the relationship with Evermore is particularly relevant. Flowers & Sours was mentioned as a location where Evermore products were sold or served. Evermore is a Rotterdam family business with a café and coffee roastery, focusing on single-origin tea, coffee, and chocolate. However, specific coffee preparations at Flowers & Sours are not publicly documented in the available material.

No concrete information is available regarding brewing methods. Consequently, it cannot be determined whether the location used espresso, filter coffee, manual brew methods, or other preparations. For a factual profile, this distinction is important. The available data primarily shows that coffee was part of a broader offering, rather than Flowers & Sours being presented primarily as a coffee bar.

In addition to coffee, various non-coffee products were mentioned. These include elderberry lemonade, magnolia blossom lemonade, mint tea, syrups, cocktails, sorbet, kimchi, sauerkraut, and yogurt. These products align with the broader profile of fermentation, flowers, herbs, and small-scale food production.

Flowers & Sours was also described as a hub for small food entrepreneurs. The location offered shared facilities, knowledge, and a network of farmers, suppliers, logistics partners, shops, and hospitality venues. Central to this was the short supply chain: from soil to mouth. This framework gave the business a broader role than simply selling products.

The available information also highlights a focus on food waste, more nutritious meals, and regional products. According to the documentation, affiliated entrepreneurs aimed to make an impact in areas such as climate, health, employment, and social inclusion. These goals were linked to the way products were developed, shared, and sold.

The location served as a hub for workshops, tastings, book clubs, and networking events. One documented sourdough workshop at Coolhaven 148A included coffee, tea, a farmer’s lunch featuring regional products, and a walk to the windmill through historic Delfshaven. This demonstrates that the space also fulfilled an educational and social purpose.

Flowers & Sours was also involved in community-focused activities on Coolhaveneiland. During the Light Switch art route, work by Sachia Pereira Stolle was displayed in the location’s window frame. Additionally, Sharp Sharp was part of the cooperative and performed alongside Flowers & Sours during a retail fair in 2017.

In 2016 and 2017, Flowers & Sours gained attention in publications focusing on Rotterdam’s food innovation and small-scale food production. Maidie van den Bos and Sanne Zwart were mentioned in a Food Top 100 in 2017, where Flowers & Sours was described as a food lab, tasting room, and gourmet grocery store on the Coolhaven.

Formal coffee awards or coffee-specific rankings have not been documented. Therefore, the significance of Flowers & Sours for coffee enthusiasts lies primarily in its combination of local coffee, food production, fermentation, and collaboration. Within that profile, coffee forms one part of a broader Rotterdam practice centered around flavor, craftsmanship, and short supply chains.