What type of glass is used?
WeeSprout glass drinking cups are made from highly durable soda lime glass.
What materials are used to make the lids?
The lids on our glass jars are 100% polypropylene plastic. This means they’re BPA, PVC, phthalate, and lead-free!
Can my glass jars be microwaved with the lids on?
We do not recommend microwaving your cups with the lids on since the lids are plastic. The glass jars themselves are microwaveable, but we recommend using care when transitioning from cold to heat.
Can I boil my glass cups to sterilize them?
Your glass cups are boil-proof once the lids are taken off, but we recommend using care when going from cold to heat. We recommend placing the jars in room temperature water before bringing to a boil. Keep the water at a gentle boil to sterilize. The lids should not be boiled, as they are plastic.
How do I wash them?
The easiest way to wash your cups, straws, and lids is on the top rack of the dishwasher. You can remove the silicone sleeves for a more thorough wash, but this is not necessary! We recommend using the included straw cleaner to thoroughly clean your straws.
Will the cups crack from heat or cold?
WeeSprout glass cups are made of very thick glass. However, it’s possible for all glass to break with extreme temperature changes. Because of this, we recommend using care when transitioning your jars between extreme temperatures. Check out some tips below:
- Let baby food cool before storing
- Leave room for expansion when filling your jars
- Avoid going immediately from the freezer to very hot water
- Do not microwave cool jars except on a low setting
How do I warm the contents of my jars?
To reheat or warm the contents of your jars, place the jar in warm water or a bottle warmer ( be sure to crack the lid to avoid high pressure). The are microwavable, but we recommend not transitioning your jars immediately from the freezer to the microwave.
What materials are the cups made of?
Our jars are made with soda lime glass while the lids are made with 100% PP plastic, which is high quality plastic manufactured without BPA, phthalates, or PVC.
Are these cups leakproof?
The jars are leak-resistant. However, they are not completely leakproof.
How long does baby food stay fresh when I use my jars for baby food storage?
In general, baby food containing poultry, fish, meat, or eggs should stay fresh in the refrigerator for 24 hours and frozen for 3 months. Baby food made with only fruits and vegetables should last 3 days in the refrigerator and 6 months in the freezer.