What to know about PlanetGoods by PlanetBox Square Glass Food Storage 6-Piece Set (3 containers)
Why it stands out
Why we like it
The square shape stacks neatly, and the lids are glass with a silicone rim, so nothing plastic touches food. Reviewed's leakproof finding is qualitative, and it tested a 12-piece configuration rather than this three-container set.
What to know
Score breakdown
Whether the lid stays leakproof and airtight when shaken, inverted or tipped (ATK, TechGearLab, Reviewed, Your Best Digs, Gadgeteer tests), and whether the seal survives dishwashing.
How much plastic touches food. Fully plastic-free glass/silicone/bamboo/steel lids score highest; glass bases with plastic lids score lower. Also considers glass type (borosilicate vs tempered soda-lime), coatings and explicit BPA/PFAS-free disclosures.
Thermal-shock tolerance, oven/microwave/freezer limits for both bowl and lid, breakage reports, latch and lid warping, and warranty and replacement-lid availability.
Resistance to tomato-sauce staining and lasting odors (fish, garlic, fermented foods) on lids and gaskets after washing.
How easy the lids are to close and open (including vacuum suction after hot food cools), stacking and nesting, weight, vented microwave reheating, range of sizes and dishwasher-safety of every part.
Price per usable container and per cup of capacity relative to performance, warranty and longevity.
PlanetGoods by PlanetBox Square Glass Food Storage 6-Piece Set (3 containers) specs
Materials
- Lid material
- Clear glass with silicone seal
- Plastic-free lid (no plastic in lid/seal)
- Yes
- Container glass type
- Borosilicate
- Seal / gasket material
- LFGB-certified silicone
- Manufacturer states PFAS-free
- No
Set
- Number of containers
- 3 containers
- Container capacity range
- 20-64 fl oz (about 2.5-8 cups)
Heat
- Lid microwave-safe
- Yes
Care
- Lid dishwasher-safe
- Yes
Support
- Warranty
- 1 years
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