Trash can liners cut one Motel One hotel's residual waste costs by about 30%

Divide 423 kilograms of avoided plastic by 2,261 avoided buckets and each single-use container comes out at about 187 grams ^[8][9]. That is heavy for a fruit salad tub, and it is the figure a buyer needs before planning a swap, because the plastic saved per switch depends on the mass of the container being replaced. The phys.org account does not state how long the Hamburg test ran, or over what period the 4.6 metric tons at Aachen was averaged ^[16].

The Aachen saving came from sorting. Trash can liners moved material out of residual waste and into recyclable lightweight packaging, and the roughly 30% reduction applies to costs for the residual stream ^[5]. "The potential cost savings from reduced residual waste, the environmental benefits, and the minimal additional effort required in hotel operations convinced us to continue this project in Aachen immediately after the pilot phase," said Verena Ferner, group CR & sustainability manager at the Motel One Group ^[6].

The EU regulation has applied since 12 August 2026, and what January 2030 prohibits is a purchase: food service businesses may not buy food or toiletries packaged in single-use plastic, down to the ketchup packet and the individually wrapped bar of soap ^[1][2]. Of the three pilots, the reusable fruit salad containers are the only one that tests that restriction ^[17]. Liners change how a hotel throws things away. Refurbished furniture is a renovation decision ^[10].

"In our view, it is noteworthy that the solutions were tested not under laboratory conditions, but during normal hotel operations," said Sandra Transchel, professor of supply chain and operations management at Kuehne Logistics University ^[13]. That design buys realism. It also removes the control: no comparable hotel ran the old system over the same months, so the 4.6 metric tons cannot be attributed to the liners alone rather than to occupancy or a change in housekeeping routine ^[19].

"The pilot projects demonstrate that scalability is achieved through a systematic analysis of material flows and local conditions," said Natascha Michaelsen, senior project manager ESG/CSR at Leonardo Hotels Central Europe ^[12]. Her condition cuts against lifting Aachen's percentage straight into a group-wide business case. Waste contracts and recycler availability differ by city. The Berlin and Hanover work is described as a significant amount of furniture reused, with the findings now feeding other renovation projects ^[11].

For WWF Germany, the pilots answer a familiar objection. "It is all too often claimed that environmental protection harms the economy," WWF Germany said, adding that the project results prove the opposite is true for the hotel industry ^[14]. On the evidence published here, the narrower claim holds: at one hotel, one waste stream got about 30% cheaper, and at several others 423 kilograms of plastic went unbought ^[5][8]. The report was written by the two hotel groups together with WWF Germany and Kuehne Logistics University, and is available in German ^[3].