customer stories
Food & beverage packaging

Borrow Cup: Scaling Eco-Design & EPD’s with CarbonBright

Borrow Cup, a joint venture by Hubbub and Reposit, partnered with CarbonBright to assess and verify its reusable‑cup scheme’s environmental impact. By enabling customers in Glasgow to borrow and return cups at cafés and other venues, Borrow Cup delivers a practical circular alternative to single‑use disposables.
Requirements - At A Glance

Verify the environmental impact of Borrow Cup’s reusable cup system to strengthen its sustainability credibility

Demonstrate lower impacts across climate (CO₂e), water use, and human toxicity compared to single-use paperboard cups

Prove reuse outperforms single-use after only a few uses with data-backed insights from CarbonBright

industry:

Food & Beverage

GEOGRAPHIC FOOTPRINT:

Glasgow, Scotland, UK

PRODUCT LINE:

Ergonomic Office Solutions

Summary

The Challenge

Borrow Cup’s mission is to reduce single-use waste through a reusable cup program across participating cafes. While the program’s environmental potential was clear, Borrow Cup needed to quantify and verify its sustainability impact to engage stakeholders, attract partners, and scale effectively. However, traditional impact measurement posed key challenges:
Limited visibility into the full environmental footprint beyond carbon.
Manual, time-consuming data collection that hindered scalability.
Difficulty verifying impact claims in a credible, standardized way.
Lack of consistent benchmarks for reuse versus single-use systems.

The Solution

Hubbub and Reposit  partnered with CarbonBright to evaluate and verify the full environmental impact of its reuse system. Using CarbonBright’s AI-powered sustainability analytics platform, Borrow Cup was able to:
Conduct cradle-to-grave impact assessments comparing reusable and single-use cup systems.
Quantify verified reductions in carbon emissions, water use, and waste generation.
Model different operational scenarios (e.g., wash frequency, return rates, logistics) to optimize environmental performance.
Generate transparent, audit-ready results aligned with industry sustainability frameworks.
Communicate verified impact metrics to partners, investors, and customers.

The Impact

The Life Cycle Assessment conducted by CarbonBright quantified the environmental performance of Borrow Cup versus single-use cups across climate metrics. Key insights include:
Rapid Impact Reduction: Reusable cups outperform single-use alternatives after only a few uses.
Lower Environmental Footprint: Repeated reuse reduces impacts across carbon, water, and human toxicity categories.
Optimized Operations: Efficient washing systems and low-emission transport further amplify sustainability benefits.
Verified Sustainability: Data-driven LCA results provide credible, science-backed evidence of Borrow Cup’s circular impact.

About Borrow Cup

Borrow Cup, a joint venture by Hubbub and reuse start-up Reposit, is a pioneering circular reuse system designed to replace single-use beverage cups with a convenient, returnable alternative. By partnering with cafes, offices, and events, Borrow Cup makes reuse accessible and scalable—reducing waste and emissions while fostering sustainable consumer behavior. Through smart logistics, durable design, and verified sustainability data, Borrow Cup empowers communities to make reuse the norm and deliver measurable environmental benefits at scale.

Industry Overview

Single-use beverage cups have a major environmental impact due to their high consumption and complex materials. Most are made from paper lined with plastic, making them difficult to recycle—fewer than 1 in 400 are recovered—and rely on fossil fuels for production, driving energy use, emissions, and water consumption. After use, disposable cups often end up in landfills, incinerated, or littered, where they can persist for decades, leach chemicals, and contribute to microplastic pollution. This highlights the urgent need for scalable, reusable alternatives that reduce waste and deliver measurable environmental benefits.

CarbonBright Solution

CarbonBright’s AI-powered sustainability platform empowers organizations to measure and verify the full environmental impact of circular and reuse systems. For Borrow Cup, CarbonBright enabled:
Multi-impact assessment across carbon, water, waste, and energy.
Scenario modeling to evaluate environmental trade-offs and system efficiencies.
Benchmarking of reuse versus single-use alternatives.
Automated reporting aligned with leading sustainability standards and disclosure frameworks.
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