Pyrex Glass Food Storage Containers vs. PlanetBox Stainless Steel Lunchbox

Materials

• Tempered soda-lime glass
• Plastic or silicone lids

Common claims

• Oven, microwave, and dishwasher safe
• BPA-free lids
• Non-porous glass

Concerns / watch-outs

• Modern Pyrex sold in the US uses tempered soda-lime glass, not borosilicate — more susceptible to thermal shock than older versions
• Plastic lids may contain BPA; look for confirmed BPA-free lids or use silicone alternatives

Notes

Pyrex glass is one of the most recommended non-toxic food storage options. The glass body is completely inert. Replace plastic lids if they become scratched or stained.

Cleaner alternatives

• borosilicate glass container
• mason jar

Materials

• 18/8 food-grade stainless steel

Common claims

• No plastic food contact
• Dishwasher safe
• Durable enough to last years

Concerns / watch-outs

• Magnet closures require care to avoid pinching
• Premium price vs. conventional lunchboxes

Notes

One of the best divided stainless lunchboxes for kids and adults. No plastic food-contact surfaces. Extremely durable.

Cleaner alternatives

• stainless kids lunchbox
• lunchbots stainless container