Research calendar
What we're testing, and when
Four flagship studies a year, plus smaller monthly checks. PFH Plus members vote on planned studies — the most-wanted move up the queue.
Q4 2026 (Oct–Dec)
Planned0 member votesTea bags: which ones still contain plastic?
FTIR on bag paper, seals and mesh from 20+ UK tea brands.
Q1 2027 (Jan–Mar)
Planned0 member votesFood containers: what's in the seal?
Lids, seals and clips of glass and steel containers sold as plastic-free.
Q2 2027 (Apr–Jun)
Planned0 member votesSteel kettles: hidden plastic in the water path
Lid interiors, filters and water windows of 15 "steel" kettles.
Q3 2027 (Jul–Sep)
Planned0 member votesBaby bottles and sippy cups
Materials and heated release testing of bottles, teats and cups sold for under-3s.
Q4 2027 (Oct–Dec)
Planned0 member votesLaundry and dishwasher pods: what the film really is
Film polymer identification and a review of breakdown evidence.
Q1 2028 (Jan–Mar)
Planned0 member votesReusable water bottles and lids
What touches your water in 20 popular steel and glass bottles.
Q2 2028 (Apr–Jun)
Planned0 member votesChewing gum bases
Candidate study — members vote. Which gums use synthetic polymer bases?
Planned0 member votesPeriod pants and reusable pads
Candidate study — members vote. Leak-proof layer materials and claims.