What Is Borosilicate Glass — and Is It Safe for a Water Bottle?
Quick answer
Borosilicate glass is a type of glass made with boron trioxide, which makes it far more resistant to temperature changes and everyday stress than regular glass. It's the same family of glass used in lab equipment and quality bakeware. It's non-toxic, non-porous and free of BPA and phthalates, making it one of the safest materials for a reusable water bottle.
How it differs from regular glass
Most drinking glasses are soda-lime glass, which can crack when it goes from hot to cold. Adding boron gives borosilicate a very low rate of thermal expansion, so it handles ice water, warm tea and the dishwasher without stress.
Why it's ideal for drinking water
- Inert: it doesn't react with water, citrus or electrolyte powders.
- Non-porous: no absorbed odours, stains or flavours.
- Clear: you can see exactly how clean your bottle is.
- Durable: tougher than ordinary glass for everyday use.
The Bohdi Bottle
Every Bohdi Bottle is made from premium borosilicate glass, wrapped in a soft-touch removable silicone sleeve and finished with a leakproof, wood-inspired cap. It holds 900 ml and comes in Ivory, Sage, Blush, Sand, Nude and Mediterranean Blue.
FAQ
Is borosilicate glass toxic?
No. It's chemically stable and doesn't leach into food or drinks.
Can I put hot drinks in a borosilicate bottle?
Borosilicate handles temperature changes well, but a water bottle isn't insulated — warm drinks will make the glass warm to touch.
Premium borosilicate. Toxin-free hydration.
Shop Bohdi Bottle