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Future materials

Designing with hemp shiv: texture, lightness and open questions

Some materials invite you to reach out and touch them. Hemp shiv, with its irregular fragments and plant texture, belongs to that group. But its interest for design does not end at the surface. Looking at it within a composite reveals how small pieces are joined, the function an object seeks and what remains to be demonstrated before it leaves the workshop.

Close-up of beige hemp-shiv particles.
Hemp-shiv chips: the woody part of the stalk is being explored in boards and panels, with questions still to resolve.

Texture starts the conversation

Hemp shiv comes from the woody part of the stalk. When it appears in a panel, what we see is only part of the recipe: what holds the fragments together matters too. For a designer, that bond is a central decision. It can change the finish, manufacturing method and possible uses of the object, so deserves as much attention as the plant material.

A sample on a table lets us assess colour, scale and feel, but does not demonstrate strength, stability or moisture behaviour. Keeping these separate helps us enjoy a material without demanding answers it cannot yet provide. A sample collection suggests possibilities; documentation and tests explain which have become verified performance.

When mycelium enters the mix

An open-access study investigated composites of hemp shiv and the fungus Fomes fomentarius. Its authors assessed mechanical, physical and thermal properties to explore potential applications. The interesting news is not a universal recipe for making anything, but the examination of a specific combination through defined methods and measurable questions.

CBE JU also presents GRACE project panels combining streams of plant and textile materials with mycelium. These examples open a conversation about binders and resource use. Each project’s name should stay attached to its results: combining discoveries from different studies can create an imaginary material that nobody has made or tested.

Prototype, demonstrator, product

In an exhibition, an object may exist to show an idea of form. In a laboratory, to test a hypothesis. In a shop, to perform a function repeatedly. These are different contexts. The same object may travel through them, but each step needs additional information. A conceptual lamp does not automatically demonstrate that its material suits every lighting use or a building element.

A good display label should identify the proposal’s stage. If it does not, we can ask about composition, manufacture, tests and intended use. This does not diminish the design’s merit. On the contrary, it helps locate the actual achievement, whether a new aesthetic, a way of using resources or a property not previously documented.

Design also means deciding what not to hide

Plant texture can become a visual language, but can also disappear beneath a finish. Neither option is inherently more honest. Honesty lies in explaining which material is used and what is known about it. A hemp-shiv object is especially appealing when its form awakens curiosity and its documentation lets us pursue it, without having to fill the gaps with imagination.

Take this with you

Hemp shiv offers design possibilities; each combination needs testing and a defined use.

Sources you can open

The source may be in its original language. English publication does not change the jurisdiction or date discussed.

  1. Study of Fomes fomentarius and hemp-shiv composites
  2. CBE JU: mycelium-bound sound insulation and wall panels

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Check the identity, research, uncertainties and documented forms of each compound.