WECK

742 – 1/2 L Mold Jar (Set of 6)

75/ 100 · 75% confidence
742 – 1/2 L Mold Jar (Set of 6)
1 of 4 parts have unknown materials. We score only from captured evidence and never guess a material, so unknown parts count against the score and lower our confidence. If a seller confirms these materials, the score changes.

Where to buy

Parts & evidence

PartMaterialStateEvidence
clamps·unknown
“use the clamps to seal shut” listing ↗
gasketrubbernon-plastic
“place the rubber gasket on the bottom side of the glass lid” listing ↗
jarglassnon-plastic
“WECK Jars are high-quality glass jars” listing ↗
lidglassnon-plastic
“6 glass lids” listing ↗

Research on plastic in food storage

Official

Peer-reviewed journals, government agencies, and standards bodies.

Unofficial

NGO guides, independent testing, teardowns, and documented community reports.

  • “When Fulfer put hot pasta in a black plastic takeout container and followed the same procedure, she again saw microplastics under the microscope. Even more came off the container and leached into the pasta when she microwaved it in the same vessel.”

    NBC News · 2025

Quoted verbatim and linked to the source. We make no health claims of our own. Read the sources and judge them yourself.

Seller links may be affiliate links. Disclosure. We state observed evidence, not verdicts. See the scoring rubric.