Mason / Ball Glass Jar vs. Pyrex Glass Food Storage Containers

Materials

• Soda-lime glass
• Steel lid with plastisol sealant

Common claims

• Airtight seal
• Reusable
• Dishwasher safe

Concerns / watch-outs

• Plastisol lid liner may contain BPA in some manufacturers' lids — BPA-free replacement lids are widely available
• Glass can break if dropped

Notes

One of the most trusted, inert food storage vessels. Switch to BPA-free lids (widely available) for the cleanest setup.

Cleaner alternatives

• borosilicate glass container
• stainless steel food container

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