Most companies say they can keep water cold for 24 hours and hot for 12. We wouldn’t recommend keeping water in your bottles any longer than that as it can start to take on a stale taste. That said, you can safely store tap water for up to six months, according to Healthline. Which are the safest water bottles to buy? Warm soapy water and a bottle brush will clean all sorts of water bottles including metal, glass and plastic. I recommend that you use fragrance-free soap, as bottles made of silicone and plastic can take on the scent of the soap. For straws, use a pipe cleaner. If a straw is removable, soak the straw at least once a week,” says Byrne. Hopefully our mission is what got you here but you should also know our product is the best on the market.

I adore the Yeti Rambler, but I couldn’t put it higher on this list because it’s so heavy. The lightest 532 ml version weighs 462g empty. For context, the S’wheat weighs almost half that, at 250g, and Chilly’s Series 2 bottles weigh 390g. Half a kilo may still not sound very heavy, but it sure will take its toll on weaker wrists. If you’re buying a reusable water bottle with the intention of becoming more environmentally friendly, it doesn’t get more sustainable than the S’wheat bottle. The S’wheat is a reusable plant-based water bottle made from wheat straw and bamboo. The wheat straw is the stalk part of cereal plants which remains after they’ve been harvested. Usually, wheat straw would be used as biofuel, animal feed or burnt in the open - causing pollutant emissions.

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Gavin Parker, Co-founder and COO of Waterhaul, shed light on the company's ambitious mission to repurpose ocean plastic into high-quality products. His emphasis on the unique advantage gained through hands-on material sourcing resonated, showcasing a commitment to not just recycling, but reimagining materials' purpose. Ocean Bottle explains that an astonishing 22 million kgs of plastics pollutes the ocean every day! These plastics originate from around the world, especially Western countries, and end up in coastal communities that do not have the waste infrastructure to properly reuse or recycle them.

In a departure from the traditional Chilly’s style, this brand new water bottle has a stainless steel straw with a sporty flip lid and carry loop, designed for use on the go. It comes in either 500ml or a litre. Tossed into lakes and rivers, these plastics eventually enter the ocean where they ruin marine ecosystems – that’s where Ocean Bottle comes in! Another customer loves Ocean Bottle’s charitable impact on marine life and coastal towns, reporting in her Ocean Bottle review: “A brilliant solution for the plastic and poverty problems. Smart design, minimalist aesthetics, versatile use. Beautiful, lightweight and practical.” Yet another shopper found that this brand also offers friendly and prompt customer service. She shares in her Ocean Bottle review: “The awareness it raised helps spreading word and getting more people to support the cause to save our oceans. The people at Ocean Bottle are very nice and helpful with query one may have.” Many brands will also be certified by industry-recognised sustainability charities. Some logos to look out for include B-Corp, signifying the business puts purpose before profit; 1% for the Planet, meaning the organisation donates 1 per cent of its revenue to environmental causes each year; and also Climate Neutral, a globally-recognised standard for carbon accountability.The bottle holds 500ml of the liquid of your choice, hot or cold, and can maintain the temperature of your drink for up to 6 hours, or longer for cold drinks. Ocean Bottle’s charity partners operate in places such as the Philippines, India, and Malaysia, where they pay people fair living wages to collect plastic waste and bring it to centers where it can be properly recycled. The Ocean Bottle is our award winning, best selling bottle. It’s been designed to be clean, and minimalistic, Another customer says she is appreciative of this company’s commitment to saving ocean ecosystems. She shares in her Ocean Bottle review: “ The thing I love the most about your product is that you’re motivating people to take care of the ocean.” Conscientious customers will love that every Ocean Bottle is made from recycled stainless steel and BPA-free plastic – and can be recycled again once you’re done with it!

We work with collectors on the front lines of the ocean plastic crisis in Brazil, Egypt, Haiti, Ghana, India, Indonesia and The Philippines, but we need your help taking part in the solution to turn off the ocean-plastic tap.

The sustainable solution to on-the-go hydration - hot or cold

When we introduced the Original Ocean Bottle our intention was to enable others to have a direct impact on the plastic pollution problem with a product that lasts a lifetime. We work with plastic collection partners @plasticbank, @plasticsforchange and @repurpose_global to prevent plastic reaching the ocean whilst building a new currency for plastic waste and helping to improve social mobility at the same time.