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Coffee built for consistency.
Each cup delivers a dialled in measure of caffeine and polyphenols.
Developed in the lab, perfected in the roastery.
At the heart of Stiir is a simple principle: coffee should be predictable.
Over months of testing, we analysed how different origins and roast profiles affect what actually ends up in the cup.
From those results, we built a blend designed to deliver a consistent level of caffeine and polyphenols, every time it’s brewed.
Each batch is tested again to ensure the same result.
Trusted by
elite sport and high-performance environments.
And hundreds of elite footballers and endurance athletes.
Our Process
Built through testing, refined through repetition.
Stiir was developed by testing what actually ends up in your cup, not just what sits in the bean.
From origin selection to roast profile, each decision is measured against output. The result is a coffee that delivers the same profile, every time you brew it.
01
Origin selection
Beans chosen based on measurable caffeine and polyphenol output.
02
Roast profile
Roasted to preserve key compounds while maintaining balance and flavour.
03
Blend refinement
Coffees combined to deliver a consistent profile across every brew.
04
Batch testing
Each batch verified to ensure the same output, cup after cup.
Customer reviews
★★★★★
Excellent • Based on customer feedback
★★★★★
Consistent every time
Clean taste and no harshness. One of the few coffees that feels predictable.
★★★★★
No bitterness at all
Smooth, no lingering aftertaste. Works across cafetiere and espresso.
★★★★★
Cleaner coffee
Lighter feel but still full flavour. Easy to stick with daily.
★★★★★
Reliable every morning
Balanced and smooth. Switched fully and haven’t looked back.
Blog
Measured coffee for people who measure everything else.