FAQ
Whether you're curious about our sustainable products, personalization options, or need help with your order, you're in the right place.
At FLASKE, we're all about keeping things simple and transparent—just like our mission.
Dive in and find what you need, or reach out if you'd like a helping hand!
Flaske products
What is The Plastic Soup Foundation?
What is The Plastic Soup Foundation?
The Plastic Soup Foundation is one of the leading organizations fighting plastic pollution at its source.
They work to stop plastic from entering our oceans through education, innovation, and bold action.
At FLASKE, we proudly support their mission — because every bottle we sell is a step toward cleaner, healthier seas.
Can I put my FLASKE in the dishwasher?
Can I put my FLASKE in the dishwasher?
Yes, you can. Up to 60–65°C. But for the longest-lasting joy, we recommend washing it by hand.
Use warm water, our cleaning tablets, and the FLASKE brush to keep your bottle fresh, shiny, and performing like day one.
A little care goes a long way.
What’s the best way to clean my FLASKE products?
What’s the best way to clean my FLASKE products?
To keep your FLASKE fresh and ready for every refill, we recommend rinsing it with warm water and mild soap after each use. Let it air dry with the lid off. Your FLASKE will thank you.
For everyday cleaning, our bamboo brush is perfect. For a deeper clean, use FLASKE cleaning tablets, or a natural mix of baking soda and vinegar.
Used juice, coffee, or smoothies? Clean it right after use.
Used it for water? A quick daily rinse is enough.
And don’t forget your food pot. Wash it with warm water and soap after every meal to keep it in top shape.
A clean FLASKE = a fresh start, every time.
Can I bring my FLASKE when I fly?
Can I bring my FLASKE when I fly?
Yes, absolutely. Just make sure it’s empty when you go through security. An empty FLASKE sails through airport checks without any issues.
Even better? Many airports now have refill stations, so you can top it up with fresh water before your flight. Travel lighter, fly smarter, and skip the single-use bottles.
Can I return my engraved FLASKE?
Can I return my engraved FLASKE?
Because every engraved FLASKE is made just for you, we can’t accept returns on personalized items, unless there’s a mistake or something went wrong.
We check every order with care, but if there’s an issue, we’ll make it right. Just reach out, we’re here to help.
I put the wrong address in when completing my order. Now what?
I put the wrong address in when completing my order. Now what?
No worries — just contact us as soon as possible by phone or at info@flaske.com. If your order hasn’t left our warehouse yet, we’ll update the address right away.
If your order is already on its way or the delivery fails, you’ll need to cover the cost to resend it to the correct address.
Please note: cancellations are only possible if your products haven’t been personalised yet.
Need help? We’re here to sort it out with you.
Products
What can I use my FLASKE reusable water bottle for?
What can I use my FLASKE reusable water bottle for?
From your morning coffee to your lunchtime salad, FLASKE is made to move with you.
Keep your water ice-cold during workouts, sip tea on your commute, enjoy smoothies on the go, or pack a warm lunch for your hike.
Our bottles, cups, tumblers, and food pots are designed for real life: hot, cold, always ready, and made to be used again and again.
Whatever your day looks like, there’s a FLASKE for it.
How long does a FLASKE keep drinks hot or cold?
How long does a FLASKE keep drinks hot or cold?
It depends on the product but every FLASKE is designed to keep your drink or meal at just the right temperature, for hours on end:
- Original Bottle & EVO Bottle 600ml: up to 24 hours cold and 12 hours hot
- EVO Cup 200ml & EVO Tumbler 500ml: up to 24 hours cold and 8 hours hot
- Coffee Cup 380ml: up to 12 hours cold and 6 hours hot
- Food Pot 400ml: up to 10 hours cold and 5 hours hot
No matter what you’re carrying: ice water, coffee, or a warm lunch, your FLASKE is built to keep the moment perfect. All day, every day.
What are the dimensions of your product?
What are the dimensions of your product?
Each product has detailed dimensions height, diameter, capacity and weight. It’s all there, so you’ll know exactly what fits your bag, your cup holder, and your routine:
Bottles:
Original 500 ml (300gr): 7,5 x 7,5 x 26,5 cm
Original 750 ml (424gr): 8,5 x 8,5 x 32 cm
Original 1 Liter (445 gr): 9,5 x 9,5 x 33 cm
EVO Bottle 600ml (313 gr): 7x7x25.2 cm
Coffee Cups:
EVO Coffee Cup 200ml (205 gr): 5,5 x 5,5 x 10 cm
Coffee Cup 380ml (240 gr):6,5 x 6,5 x 13,5 cm
Tumblers:
Tumbler 500ml (313 gr): 8,5 x 8,5 x 17,3 cm
Foodpots:
Food pot 400ml (333 gr): 9 x 9 x 13 cm
Is it safe to use a stainless steel water bottle or coffee cup?
Is it safe to use a stainless steel water bottle or coffee cup?
Yes, absolutely. Our bottles and cups are made from 18/8 food-grade stainless steel, one of the safest materials you can drink from.
It’s non-toxic, BPA-free, and doesn’t need a plastic liner. Even when dented or filled with hot drinks, it won’t leach chemicals unlike plastic.
Plus, it’s ultra-strong and way safer to travel with than glass. Just refill, sip, and go, with peace of mind.
What is an EVO product?
What is an EVO product?
EVO stands for evolution. This is the next generation of sustainable drinkware. It’s smoother in your hand, lighter in your bag, and designed to match your lifestyle.
With matching leakproof lids, refined shapes, and stunning colours, every detail is elevated. And yes, you can personalize it so it’s not just a bottle, it’s your bottle. For yourself, or as a gift that actually means something.
Is my FLASKE leakproof?
Is my FLASKE leakproof?
Absolutely. Our bottles and cups are 100% leakproof. You can toss them in your bag with confidence. No spills, no surprises. Just one less thing to worry about in your day.
Can I personalize my FLASKE?
Can I personalize my FLASKE?
Of course, personalization is what makes it yours. We engrave your name (or a short message) directly into the bottle for a timeless, premium finish.
And the best part? It doesn’t slow anything down. No delays. Just a custom bottle made fast and made to last.
What materials do we use?
What materials do we use?
We use certified high-grade 304 (18/8) stainless steel. It’s double-walled, vacuum-insulated, and completely free of BPA and toxins.
That means no weird aftertaste. Just safe, clean sips. Again and again. Built to last, and better for the planet.
How do I clean my FLASKE properly?
How do I clean my FLASKE properly?
For the deepest clean and the freshest feel, use our FLASKE cleaning tablets with the soft-bristle brush. It takes just 15 minutes. Drop, wait, rinse and your bottle is as fresh as day one.
No funky smells. Just pure, clean sips.
Can I use FLASKE for sparkling water?
Can I use FLASKE for sparkling water?
Yes, your FLASKE can handle sparkling water. Just don’t fill it to the very top. Carbonated drinks build pressure, so it’s important to leave a bit of space. When opening, always do so slowly to release the pressure gently. That way, you avoid spills and enjoy your bubbles safely, wherever you go.
Where are FLASKE products made?
Where are FLASKE products made?
FLASKE products are responsibly crafted in Asia by trusted partners who meet our high standards for quality, safety, and ethics. We inspect every product before it leaves our warehouse because if it doesn’t wow us, it doesn’t go out.
Do you support any environmental causes?
Do you support any environmental causes?
Yes and it’s at the heart of everything we do. Every FLASKE sold supports the Plastic Soup Foundation, helping to fight ocean plastic and protect marine life.
You’re not just buying a bottle or cup, you’re joining a movement for cleaner oceans and a better future.
Do you offer returns or exchanges?
Do you offer returns or exchanges?
We want you to be happy. If your item isn’t personalized and it’s unused, you can return it within 30 days. No questions asked. If there’s ever an issue with your order, we’ll make it right. Promise.
Do you ship internationally?
Do you ship internationally?
We do. To nearly every country. Your shipping costs and delivery time will show at checkout. And even with personalization, we still ship fast. Because we know you’re excited. And we are too.
Can I order FLASKE for my company or event?
Can I order FLASKE for my company or event?
Absolutely. From onboarding gifts to unforgettable client surprises, we personalize FLASKE bottles with logos, names, and custom packaging. You can even put stock in our warehouse and we deliver within 5 days.
No boring keychains or plastic junk. Just a meaningful, sustainable gift people actually want to use and keep.