For journalists

Plastilose in brief.

Plastilose grows bacterial cellulose and turns it into disposables for healthcare. Its first product is a 30 ml medicine cup, without plastic, coating or additives. The company is based at Biotech Campus Delft.

The Plastilose team with the Nieuwe Heldenprijs 2026

The facts, with sources.

  • Plastilose started in 2024 when Jason Smit, newly graduated, began experimenting, first in his own kitchen and then at BlueCity in Rotterdam. It was incorporated in December 2025 and is registered in Rotterdam. Its lab and office are at Biotech Campus Delft. Source (details and source)

  • A pilot is running at Maasstad Ziekenhuis in Rotterdam, where hospital staff test our cup during the medication round. No patients take part yet. We share results only after the joint publication with Maasstad, expected in early November 2026. Source (details and source)

  • Plastilose won the Nieuwe Heldenprijs 2026. Source (details and source) Plastilose was selected for the KVK Innovatie Top 100 2026, in the Circular Economy category. Source (details and source)

  • In March 2026 Plastilose filed a Dutch patent application. Source (details and source)

  • Dutch healthcare uses an estimated 89 to 143 million plastic medicine cups a year. Our best estimate is 112 million. Estimate (details and source)

  • Our own internal LCA indicates up to about 80% less CO₂ than a plastic cup. It is an internal cradle-to-grave estimate, discussed with an external LCA expert. Formal external verification is not yet complete. Depending on the scenario, the reduction is 48 to 83%. Estimate (details and source)

  • Our team consists of two co-founders and five employees. We also have two advisers. Our own data (details and source)

Feel free to quote this wording. Want to phrase a figure differently? Email us and we will check it with you.

What we do not claim.

The cup has no compostability certificate, is supplied non-sterile and is not a medical product. No patients take part in the pilot yet. We will publish the results together with Maasstad Ziekenhuis.

Images

Photos and logo.

You are free to use these images when reporting on Plastilose. Please credit Plastilose. For larger files, email us.

A question or an interview? Email us and you will speak to Joram Boumans, co-founder.

Joram Boumans, co-founder and CEO of Plastilose

Sources and evidence

Everything we claim on this page, with the source, the conditions and the date we last checked it. Our own testing is marked as Internal test, plans as Goal. So you can check for yourself what each claim rests on.

Show all 8 sourcesHide sources
  1. Source Plastilose started in 2024 when Jason Smit, newly graduated, began experimenting, first in his own kitchen and then at BlueCity in Rotterdam. It was incorporated in December 2025 and is registered in Rotterdam. Its lab and office are at Biotech Campus Delft.
    Source
    Netherlands Chamber of Commerce register; Plastilose business plan, version 4.1
    Conditions
    It began as Jason's own project, not as a university project.
    Status
    Source
    Last checked
    8 October 2026
  2. Source A pilot is running at Maasstad Ziekenhuis in Rotterdam, where hospital staff test our cup during the medication round.
    Source
    Maasstad Ziekenhuis press release, 9 April 2026
    Link
    maasstadziekenhuis.nl/nieuws/pilot-medicijncupjes (opens in a new tab)
    Conditions
    No patients take part yet. We share results only after the joint publication with Maasstad, expected in early November 2026.
    Status
    Source
    Last checked
    8 October 2026
  3. Source Winner of the Nieuwe Heldenprijs 2026.
    Source
    Nieuwe Heldenprijs 2026
    Link
    rotterdamseondernemersprijs.nl/2026/06/02/dura-vermeer-wint-rotterdamse-ondernemersprijs-2026 (opens in a new tab)
    Conditions
    Awarded on 2 June 2026.
    Status
    Source
    Last checked
    8 October 2026
  4. Source Selected for the KVK Innovatie Top 100 2026 (Circulaire economie).
    Source
    KVK Innovatie Top 100, 2026
    Link
    kvkinnovatietop100.nl/site/top-100-2026 (opens in a new tab)
    Conditions
    Annual selection by the Netherlands Chamber of Commerce.
    Status
    Source
    Last checked
    8 October 2026
  5. Source Patent pending (Dutch application filed March 2026).
    Source
    Dutch patent application, filed 11 March 2026
    Conditions
    An application is not a granted patent.
    Status
    Source
    Last checked
    8 October 2026
  6. Estimate Dutch healthcare uses an estimated 89 to 143 million plastic medicine cups a year. Our best estimate is 112 million.
    Source
    Plastilose market analysis (2026), based on public data from VZInfo and Statistics Netherlands (CBS), ActiZ, Zorgverzekeraars Nederland and the Monitor Langdurige Zorg
    Link
    plastilose.nl/en/healthcare/market-analysis/#sources-by-sector
    Conditions
    Our own bottom-up estimate, based on data from Statistics Netherlands (CBS), the RIVM and the Long-term Care Act (Wlz), plus more than 100 interviews with healthcare organisations around the turn of 2024 to 2025. Not externally verified.
    Status
    Estimate
    Last checked
    8 October 2026
  7. Estimate Our own internal LCA indicates up to about 80% less CO₂ than a plastic cup.
    Source
    Plastilose internal life-cycle assessment (2026)
    Conditions
    It is an internal cradle-to-grave estimate, discussed with an external LCA expert. Formal external verification is not yet complete. Depending on the scenario, the reduction is 48 to 83%.
    Status
    Estimate
    Last checked
    8 October 2026
  8. Our own data Two founders, five employees and two advisers.
    Source
    Plastilose (2026)
    Conditions
    This is the position as of October 2026.
    Status
    Our own data
    Last checked
    8 October 2026