Basic care

Insulated Stainless Steel bottle:

Is the Stainless Steel bottle dishwasher, microwave, or freezer safe? No. We keep things simple and honest. Our bottles are designed for durability, but not for extreme appliance use. Hand wash only. Do not microwave or freeze; this extends the life of the materials and keeps your bottle looking its best.

Borosilicate Glass Bottle:

What about the borosilicate glass bottle; is it dishwasher, microwave, or freezer safe? The glass bottle is dishwasher and microwave safe, just remove the lid first. But never put it in the freezer. Freezing liquids expand and can crack even durable glass. We keep things simple and honest; treat the bottle well, and it'll last.

 

How long does it keep drinks hot or cold?

Our insulated bottles keep drinks hot or cold for 6–12 hours, tested in normal, protected conditions (like inside a bag, at your desk, or indoors). On a scorching summer day left under direct sun? No bottle on earth defies physics; expect faster temperature loss in those situations.

 

Can I put boiling liquids straight in?

You can. Just open the bottle gently afterwards; hot liquids can build steam pressure inside. It's safe as long as you open it slowly to release the pressure.

 

Is the bottle leak-proof?

Yes, when sealed properly. No need to over-tighten; that can wear down the silicone ring over time. A firm, comfortable twist like closing a household tap is all it takes to keep your bag dry.

 

What’s the bottle made from?

We use high-quality 18/8 stainless steel inside of our insulated bottles (201 steel exterior), and high-quality borosilicate glass for our glass bottles. The leak-proof rings are made from silicone derived from silica (like the sand) a more durable, healthier and stable option than plastics.

 

Are your products really sustainable?

Yes and here’s how we back it up:

 

• No Plastic Interiors

Both our glass and stainless steel bottles are entirely plastic-free where it matters. The only sealing component is a silicone ring made from silica (derived from sand), not petroleum-based plastic.

 

• Built to Last

Our bottles are made from highly durable materials; borosilicate glass and 18/8 stainless steel. So you won’t need to replace them every few months.

 

• No Greenwashing

We don’t add “eco” stickers for show. Our materials are selected for their durability and recyclability. We also avoid aesthetic plastics or fake bamboo details that serve no purpose and wear quickly, parts that are designed as "planned obsolescence"

 

• Fewer Products, Not More

We don’t push excessive consumption. We only offer essentials that you’ll actually use. If you already have a good bottle, keep using it. That’s real sustainability.

 

• Minimal, Conscious Packaging

Our packaging avoids unnecessary branding and plastic.

 

How long does delivery take?

Standard shipping takes 7–12 business days. You’ll receive a tracking link as soon as your order ships, so you can keep an eye on things.

 

Can I return my order?

Of course. We offer a 30-day return policy. If your item arrives damaged or isn't quite what you expected, just contact us we’ll sort it out. Please, read the refund policy here: [LINK]  

 

Still got questions?

We prefer fewer, better things; that includes fewer unanswered questions.
Drop us an email at info@stufftolast.co.uk

We’re here to help.