About Water Bottle Advisor
We test bottles, record the results, and show our work.
We buy and test the bottles we write about, take our own measurements and photos, and keep track of the details that are easy to miss on a product page. The goal is simple: know the product well before we recommend it.
Why Water Bottle Advisor exists
We wanted better answers than a product page could give us.
Too many bottle reviews repeat the same specs, features and manufacturer claims. That was never very useful to us.
So we do the obvious thing: get the products, use them ourselves and test the things we would want to know before buying.
How we test products.
Our testing follows a detailed protocol of dozens of repeatable tests, applied consistently to the bottles we review. Download the full testing protocol PDF below to see how we assess performance, usability, cleaning and durability.



- Use it
Carry it through desk work, walks and daily routines.
- Measure it
Record weight, dimensions and measurable performance.
- Stress it
Repeat lid, usability and durability procedures.
- Report it
Document the results, trade-offs and annoying parts.
No AI policy
Tested by us.
Not generated.
The reviews, photos, videos and test results you see on WBA come from real products and real testing. We do use AI behind the scenes for some internal tools and workflows, but not to create the evidence we publish.
Original photography
The photos on WBA are our own and show the products we actually have in front of us.
Actual product · Original WBA imagePhysical test data
If we publish a measurement, it came from a real test we ran and recorded.
Measured physically · Not simulatedOriginal video
Our videos show the real product, the real test and how it behaves in use.
Real procedure · Real-world useHands-on verdict
Our verdict comes after we have used the product, checked the data and looked at the trade-offs.
Human judgment · Trade-offs includedWhere we draw the line
AI can help us work more efficiently. It cannot replace the product, the test or the person making the judgment.
Affiliate links & free products
How we handle affiliate links and free products.
Some of the products we test are sent to us by brands, and we may earn a commission when someone buys through one of our links. Neither changes how a product is tested or scored.
Brands cannot buy a better score
Affiliate commissions, sponsorships or free products do not add points or change the scoring rules.
A free product is still reviewed like any other
Sending us a bottle does not guarantee a recommendation, a positive review or softer criticism.
We do not remove problems because a brand sent the product
If something leaks, feels uncomfortable, is difficult to clean or simply disappoints us, we say so.
A brand can send us the bottle. The opinion is still ours.

Meet Jeremiah.
Jeremiah Kowalski · Founder of Water Bottle Advisor
Jeremiah spends most of his time here testing products, improving the WBA Score and finding better ways to compare bottles.
He develops our testing protocols and reviews the results that feed into the WBA Score and Bottle Database. It starts with a simple question: what is this bottle actually like to live with?
Read Jeremiah’s full author profile →

Behind the scenes
And then there’s Floppy.
There are usually bottles, testing gear and spreadsheets around here. There is also Floppy, who tends to appear whenever we are unpacking a new bottle or trying to take a photo without a cat in it.
Keep exploring
Start with the products.
The Bottle Database brings our test results, scores and product data together.
