What’s the most frequently used item when cycling? Some people bring dozens of gadgets on their trips, but what do I use the most? It really takes some thought to answer that. The bicycle—well, that’s a no-brainer. How can you cycle without a bike? Aside from what you wear and what you have on your head, I think the most essential item is the water bottle. Who goes cycling without one? Don’t nitpick and tell me you use a hydration bladder (I won’t discuss hydration bladders in this article because long-distance travel prioritizes comfort, and while hydration bladders may be cool, I’m not about to sweat buckets). Every morning, I drink half a bottle of hot water, then refill two 750ml bottles during breakfast. While cycling, I stop every 20 minutes to take a few sips, and take a 10-minute break every hour to drink more. At lunch, I refill the two bottles again for the afternoon ride. This routine repeats daily—I’m constantly drinking and refilling my bottles whenever I can. Isn’t it said that women are made of water? I say active men are even more so. Drinking too little isn’t healthy—after all, water is the source of life.
Since water bottles are such essential gear, I want to understand them thoroughly so I can use them happily and with peace of mind. I believe water bottles fall under personal hygiene items—they hold liquids that go into your body, so they must be healthy and safe. Otherwise, you risk getting sick, which would ruin your trip. Nowadays, bicycle water bottles on the market generally fall into two categories: plastic and metal. Plastic bottles can be further divided into soft and hard types, while metal bottles include aluminum and stainless steel. These classifications are based on material, so let’s start by comparing these four different materials.
Soft plastic—the white, opaque bicycle water bottles that dominate the market are made from this. If you turn the bottle upside down, you’ll find some material symbols printed on it. If there’s nothing at all, I suggest you call 12315 to report the substandard product. Getting back to the point, most plastic containers have a small triangular symbol at the bottom with an Arabic numeral from 1 to 7 inside. Each number represents a type of material, and each has its own usage restrictions. Soft plastic bottles are usually made from “2” HDPE or “4” LDPE. “2” plastic is relatively stable and can withstand temperatures up to 120°C, but “4” plastic shouldn’t directly hold boiling water—the maximum temperature should not exceed 80°C, or it will release plasticizers that the human body can’t break down. The most annoying part is that, whether you fill it with hot or cold water, it always has an unpleasant rubbery smell.
Hard plastic—the most famous representative is the transparent Nalgene OTG bicycle water bottle from the U.S., known as the “unbreakable bottle.” It’s claimed to be so durable that even being run over by a car won’t break it, and it’s resistant to both heat and cold. But for safety’s sake, check the bottom—it also has a small triangle with the number “7” inside. “7” is the code for PC. Because it’s transparent and shatterproof, it’s widely used for making bottles, cups, and baby bottles. A few years ago, news broke that PC bottles release the environmental hormone BPA (bisphenol A) when exposed to heat, which is harmful to the human body. Nalgene quickly responded by introducing a new material, dubbed “BPA-Free.” But who’s to say some new issue won’t be discovered in the future? So, I’ve steered clear of plastic bottles.
Pure aluminum—the most well-known is the Swiss Sigg sports bottle, which also makes bicycle bottles, but I didn’t buy one. Instead, I chose an aluminum bottle from Zéfal, a French brand specializing in bicycle accessories. Among high-end aluminum bottles, if you look closely, you’ll see they all have an inner coating, supposedly to prevent bacteria and avoid the formation of carcinogens from direct contact between aluminum and boiling water. There’s also a claim that aluminum reacts with acidic liquids (like juice or soda) to produce harmful chemicals. Long-term use of aluminum bottles may lead to memory decline and reduced intelligence (i.e., Alzheimer’s)! On the other hand, pure aluminum is relatively soft and prone to dents from impacts. The shape isn’t a huge issue, but the real concern is if the coating cracks, losing its protective function—rendering it useless. Unfortunately, these synthetic coatings also contain BPA.
Now that we’ve covered the materials, let’s talk about the design of bicycle water bottles. Whether something is user-friendly isn’t up to the brand designers alone. Below, I’ll share some of my experiences with various bicycle water bottles I’ve used. My knowledge is limited, and I may have some inaccuracies—please bear with me.
After all that talk about knowledge and experience, let’s get practical—here’s what I think a bicycle water bottle (for long-distance travel) should have:
1. Health comes first—material must be safe and reliable. For this, I choose stainless steel.
2. No rubbery or strange tastes—this is crucial. Whatever you put in should taste like itself, not like plastic. High-quality aluminum and stainless steel bottles can achieve this.
3. Simple structure—no inner coating, because it will eventually peel off. Stainless steel meets this requirement.
4. Must hold boiling water. When getting water at restaurants or asking locals for some, it’s often hot water from a thermos or freshly boiled water—you usually don’t have time to let it cool before pouring it in. Coated aluminum or stainless steel bottles work for this.
5. Can hold other beverages like tea, milk, juice, coffee, etc. If not filled with high-temperature liquids, transparent hard plastic or stainless steel bottles are fine, but for boiling liquids, only stainless steel is suitable.
6. Easy to clean—stainless steel is the easiest to wash.
7. Durable and long-lasting—stainless steel is more impact-resistant than pure aluminum and stays newer-looking longer than plastic.
8. In emergencies, can be placed directly over a fire to boil water. Only stainless steel bottles can do this (don’t confuse insulated bottles with stainless steel ones—they’re different concepts; I’m referring to single-walled stainless steel bicycle bottles).
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