Pyrex Glass Food Storage Containers vs. Silicone Stretch Lids

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

• Food-grade silicone

Common claims

• Universal fit
• Reusable
• BPA-free

Concerns / watch-outs

• Quality varies widely; ensure silicone is food-grade and not filler-laden
• Not suitable for oven use — check maximum temperature ratings

Notes

A versatile plastic wrap alternative for covering bowls and cut fruits or vegetables. Reusable silicone is far preferable to single-use plastic wrap for this use case.

Cleaner alternatives

• beeswax food wrap
• silicone storage bag