●  A FUNKTIONSKREIS venture · Concept stage

Circular objects for everyday rituals.

Overlooked materials. Objects worth keeping.

GROUND ZERO explores how recovered materials can become beautiful, durable objects that add something to ordinary routines. We're starting with spent coffee grounds and one independent café, and testing whether the idea earns its place before we go any further.

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01 — The concept

Start small, in one café.

A grounded first-market experiment, with the larger product and circularity vision kept deliberately separate until there's evidence for it.

Category

Drinkware & everyday objects

Made with recovered materials. First investigations center on spent coffee grounds.

Route to market

One independent café

A single partnership, customized merchandise and controlled local retail feedback.

First stage

Discovery & a pilot capsule

Customer discovery, sourcing feasibility, composite development and a small batch. Not mass production.

Long-term options

Tumbler, then a cup network

A modular personal tumbler, and potentially a multi-café refundable-deposit cup system.

The core idea

Partner with a small independent café as material source, product collaborator and retail channel, then find out whether the objects we make together earn their place in the café and in people's lives.

GROUND ZERO is a working brand and venture concept. Material claims, environmental performance, product feasibility, demand, partnerships and economics have not yet been validated.

02 — Where it sits

A sibling to OPERANTE.

One parent-company worldview, two distinct consumer propositions. FUNKTIONSKREIS studies the relationships between human experience, the physical environment and the consequences of resource use.

FUNKTIONSKREIS
Parent company · research worldview

Shared values and research discipline, without forcing a single consumer-facing identity.

OPERANTE
Environmental performance skincare

Investigates how real conditions influence skin and how products can support comfort and resilience.

Visit OPERANTE →
GROUND ZERO
Circular lifestyle products

Investigates recovered materials and how useful objects can change everyday relationships with resources. First focus: coffee and cafés.

● You are here
The shared method
JUURIRoot: perceive and understand
  1. Observe
  2. Frame the problem
  3. Investigate
TEKOAct: make and prove
  1. Prototype
  2. Field-test
  3. Measure and refine

Different customers

Skincare users on one side; cafés and buyers of everyday objects on the other.

Different science

Formulation and skin performance versus material durability, processing, sourcing and reverse logistics.

Identity follows demand

Material experiments and café editions are projects, not sub-brands. A business identity should follow demonstrated demand.

03 — What we stand for

A good object first. A proven story behind it.

To transform overlooked materials into beautiful, functional objects that make everyday rituals more enjoyable, while encouraging more thoughtful relationships with the resources we use.

01  Experience

Everyday delight

Coffee breaks, sunny terraces, familiar routines and small moments of pleasure.

02  Experience

Design worth keeping

Useful forms, thoughtful colors, repairability and credible performance.

03  Experience

Local connection

A real café, a recognizable story and objects people encounter in context.

Five working principles
  1. 01

    Earn the purchase

    Utility, comfort and visual appeal must stand on their own.

  2. 02

    Make sourcing traceable

    Say what material was recovered, where and how.

  3. 03

    Design for longevity

    Avoid replacement cycles that undermine circular intent.

  4. 04

    Prove impact before claiming it

    Recycled content is not the same as a life-cycle advantage.

  5. 05

    Collaborate locally

    Give café partners real product and commercial input.

Who it's for, as a starting hypothesis: people who already value well-designed coffee and lifestyle products, specialty-café customers, and anyone interested in responsible material choices.

04 — The first pilot

One café. A visible material story.

A focused partnership with one independently owned café, rather than a citywide reusable-cup service. Each step needs evidence before it can be described as a closed loop.

  1. 01

    Discover

    Café needs, merchandise demand, waste handling

  2. 02

    Source

    Collect and document suitable spent grounds

  3. 03

    Process

    Dry, formulate and fabricate with specialists

  4. 04

    Co-design

    Match the product to the café's identity

  5. 05

    Produce

    A small batch with quality gates

  6. 06

    Retail

    Sell or use it in the partner café

  7. 07

    Learn

    Measure demand, costs and usability

GROUND ZERO

Concept, design, pilot coordination, consumer testing and commercial learning.

PARTNER CAFÉ

Discovery input, possible material access, custom identity, point of sale and operational feedback.

MATERIAL SPECIALIST

Collection suitability, cleaning and drying, composite chemistry, feasibility and traceability.

MANUFACTURER / LAB

Prototyping, quality, durability, product safety and batch production.

Traceability

A café's grounds may need to be combined with other sources for efficient production. We won't say "made from this café's grounds" unless the chain of custody can back it up.

05 — The pilot offer

The Café Edition capsule.

Personalization is the hook; the recovered material's performance has to make it viable. We start with an intentionally narrow set of objects.

A / LEARNING SAMPLE

Coaster or countertop object

A lower-complexity route for early composite trials and café feedback.

B / COMMERCIAL CANDIDATE

Café serving tray

Frequent daily use, so it needs grip, cleaning, load, stability and durability testing.

C / LATER EXPERIMENT

Cup sleeve or accessory

A possible bridge toward modular drinkware. Material and use-case feasibility remain open.

Made for each café
Café name or emblemEdition nameColor directionSurface finishBatch story

A limited pilot release co-developed with the café, with a coherent in-store presentation and a simple explanation of sourcing and material composition. Not mass-produced branded souvenirs.

06 — The evidence plan

What the pilot must prove.

The pilot is an experiment built to reach a go, revise or stop decision. It isn't an early sustainability success campaign.

CUSTOMER

Do shoppers notice, understand, want and buy the object?

Sell-through, price resistance, interviews, repeat interest.

CAFÉ PARTNER

Does it help the café rather than complicate service?

Staff feedback, usability, cleaning, reorder intent.

MATERIAL

Is the composite right for the intended use?

Composition, durability, absorption, finish, cleaning compatibility.

ENVIRONMENT

Does it actually improve on a relevant alternative?

Mass balance, binder origin, processing energy, transport, lifespan, end of life.

BUSINESS

Can both partners benefit at a realistic scale?

Unit cost, contribution, lead time, defect rate, production minimums.

Our decision rule: any failed gate triggers a redesign or a stop, never a stronger marketing claim.

07 — On the horizon

Two bigger ideas, kept on hold.

Neither is part of the first café pilot. Both stay concepts until their feasibility and environmental advantages can be shown.

Product horizon

The modular tumbler

A long-life insulated vessel with a separately replaceable exterior made, where feasible, from a coffee-ground composite. The core handles food-safe thermal performance; the shell carries the material character.

  • LID + SEALReusable, cleanable, beverage-contact tested
  • INSULATED COREDurable food-contact vessel
  • REMOVABLE SHELLCoffee-ground composite; no assumed compostability
  • SECURE INTERFACEFit, impact resistance, drainage, cleaning

"Replaceable" must never become "disposable." The aim is a tumbler people want to keep.

System horizon

A shared café cup network

A network of participating cafés offers reusable takeaway cups for a refundable deposit. Borrow a cup, return it at any participating café, get the deposit back. Cups are inspected, cleaned and sent back out.

NETWORK DENSITY

A few distant cafés won't make returns convenient.

OPERATIONS

Washing, collection, storage and transport need partners and funding.

ECONOMICS

Deposits are refundable liabilities, not income. Losses matter.

BEHAVIOR

A returned cup doesn't automatically mean another coffee sold.

Why it waits: this deserves its own pilot, measuring return rate, cup life, cleaning cost and a full life-cycle comparison.

08 — What happens next

Bounded, on purpose.

The venture stays small until customer, material and economic evidence justify the next commitment.

  1. NOW

    Concept + discovery

    Talk to cafés, explore sourcing and processors, pick the first use case.

  2. PILOT DESIGN

    Partners + sample

    Technical feasibility, a costed specimen, a co-branded capsule and shared terms.

  3. FIRST FIELD TEST

    One local café

    Small-batch selling or use in store, with structured customer and staff feedback.

  4. NEXT GATE

    Repeat or revise

    Prove quality, credible impact accounting, margins and café demand.

  5. LATER

    Future platforms

    If the evidence supports it: tumbler R&D, then a deposit-return study.

Advancing through evidence and decision gates, not an assumed launch date.

09 / Partner with us

Looking for our first café.

GROUND ZERO is opening conversations with independently owned cafés, recovered-material and composite specialists, manufacturers and test labs, and designers who care about objects that last.

If you run a café and like the idea of a product line that tells your story, or you know how to turn coffee grounds into something durable, we'd like to hear from you.

A FUNKTIONSKREIS venture / Concept stage

Prefer email? mackenzie@operante.co

GROUND ZERO starts with what's usually thrown away, and asks whether it can become something people choose to keep.