Stainless steel bottle characteristics

Today we’re going to tell you the main characteristics of stainless steel bottles, because as you know, it's the material we use for their production due to its great advantages and performance.

To be more specific, we go for 18/8, meaning it contains 18% chromium and 8% nickel. Want to dive a bit deeper into it? Don’t miss the following article!

What are the characteristics of stainless steel bottles

The characteristics of stainless steel bottles have been key in our decision to choose this raw material at Cool Bottles.

Its unique properties make it perfect for both the manufacturing process and for meeting everything you expect from our products.

• Free of BPA and other chemicals: one of the best things about this material is that it doesn't contain harmful chemicals, either short or long term. It’s very safe, making it perfect for both adults and kids.
• Prevents leaching: steel is non-porous, and this, combined with the previous point, ensures that no taste from the material seeps into the beverage, which is crucial for both flavor and health.
• Stain and odor resistant: for the same reason, its lack of porosity also prevents any odor (like coffee or juice) or residue from sticking after use.
• Durable: when you buy a Cool Bottles product, you’re investing in the future, because as the name suggests, this material is resistant to oxidation and acidity..
• Insulating ability: maybe less known, but one of its big advantages is how well it works as a thermal insulator, especially in vacuum double-wall construction.
• Thermal stability: stainless steel isn’t affected by sudden temperature changes, even in extreme winter or summer conditions. Like all metals, it expands and contracts, but the level is very minimal compared to others.
• Recyclable: as if all that weren’t enough, it’s one of the most recyclable materials out there. In fact, its recycling rate ranges from 90% to 100%, and a large portion of what’s used comes from previous life cycles. That’s amazing, because the cycle can be repeated endlessly. 
• Easy to clean: last but not least, since it doesn't retain flavors or odors, it’s super easy to clean. So, few options are better for storing drinks, regardless of their density or composition.

If you’re curious about this last point, check out our article on how to clean a stainless steel bottle properly.

How to make sure your bottle is made of steel

But beware—not everything that shines is gold (or steel). To avoid any doubts when buying a bottle, here are a few tips to make sure you’re getting the real deal and not something less:

• Try a magnet: high-quality stainless steel is not magnetic. So, a good trick is to grab a fridge magnet. If it doesn’t stick, or barely does, you’re likely dealing with the right material.
• Rust: it’s in the name—stainless. But just to remind you: other metals show visible signs of rust after only a few days. If you’ve already bought the product, you’ll notice quickly—discoloration and corrosion will appear.
• Check the finish: stainless steel has a smooth, uniform surface. This is one of the easiest things to verify at first glance. If you notice pores, seams or folds—it’s probably not stainless steel.
• Look for certifications: manufacturers typically include seals or certifications proving the material is safe for consumption, its composition, or if recycled elements are included. These can be found on the packaging and sometimes printed directly on the bottle.

But let’s be honest—the most reliable way to get a real stainless steel bottle is to buy it right here. At Cool Bottles we not only use stainless steel, we also apply unique techniques to ensure you get the best experience from your favorite drinks. 

Each of our models features Triple-Cool technology which keeps your drinks cold for up to 36 hours and hot for up to 18. Plus, our powder coating prevents cutting lines or micro-wrinkles from forming.

Now all that’s left is for you to choose the thermal steel bottle you like the most. Check out our online store and discover our full range of products. We’re sure you’ll love them!