Three projects that will potentially reduce packaging waste have received cash from the Waste and Resources Action Programme's (WRAP) £8 million Innovation Fund.
Contracts with a combined value of £324,584 were recently signed by Compak Packaging, Esterform and the Soil Association.
This means that ten projects have been supported since the fund's launch in 2004.
Pilot projects will be carried out with Prince Charles' firm Duchy Orginals, Cadbury's-owned chocolate maker Green & Black's and Sheepdrove Organic Farm.
Esterform has been given £104,500 to assess how PET plastic bottle can be further lightweighted and the impact this would have on the millions of PET bottles manufactured in the UK.
While £33,700 has been granted to Compak Packaging to support the research and development of a new type of stretchwrap, which could reduce the weight of existing material by as much as 30%.
WRAP Innovation Fund manager Mike Robey said he wanted to see more high quality bids come through in the next round of funding, which closes on September 15.
He added: "We are already supporting some very exciting projects that have the potential to deliver direct and significant reductions in household food and packaging waste levels, but we need more.
"In particular, we are looking for projects that will help us reduce the five million tonnes of household waste thrown away every year in the UK. We welcome cutting-edge projects that will push the boundaries of packaging technology beyond their current limits."