Stainless Steel Food Container vs. Pyrex Glass Food Storage Containers

Materials

• 18/8 stainless steel

Common claims

• BPA-free
• Durable
• Non-porous

Concerns / watch-outs

• Nickel and chromium can leach in very small amounts with prolonged acidic food contact — generally negligible for most people
• Not microwave safe

Notes

One of the most inert, durable food contact materials. Excellent for lunchboxes, meal prep, and replacing plastic containers.

Cleaner alternatives

• borosilicate glass container
• mason jar

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