Stiir High Polyphenol Coffee - Beans & Ground
Ground / 250g
£15.99
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Stiir High Polyphenol Coffee - Beans & Ground
£15.99
Free UK Shipping
Lab Verified
Subscriptions Available
Your coffee usage
2 cups/day
250g ≈ 14 cups
500g ≈ 28 cups
Roast Profile
Medium to light roast, developed to preserve polyphenols while maintaining a clean, balanced finish.
🌿
Polyphenols
270mg per cup
⚡
Caffeine
185mg per cup
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Finish
Clean, low bitterness
Perfect Brew — Cafetiere
Dose
18g medium ground
Water
250ml · 92–96°C
Time
5 minutes
Result
~185mg caffeine · ~270mg polyphenols
Trusted by
elite sport and high-performance environments.
And hundreds of elite footballers and endurance athletes.
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.
Frequently asked questions
Is Stiir stronger than normal coffee?
Not in the way you might expect.
Stiir delivers 185mg of natural caffeine per brew, measured and consistent. Due to the higher polyphenol content, it’s calibrated for steady focus rather than spikes or crashes. The result is clean, stable energy.
Can I pause or cancel my subscription?
Yes.
You can pause, adjust frequency, or cancel anytime from your account. There are no contracts and no hidden commitments.
What brew methods work best?
Stiir was lab-tested using a cafetiere (18g coffee, 250ml water, 5-minute steep), which delivers optimal caffeine and polyphenol retention.
It also performs well with:
• AeroPress
• V60/ Drip Machine
• Espresso
For best results, use freshly ground beans and precise measurements.
Is shipping really free?
Yes. We offer free UK shipping on all orders.
£4.95 Intro Offer FAQ
What happens after my first order?
Your subscription continues at the standard price with 15% off applied to every delivery.
Am I locked into a subscription?
No. You can pause, change or cancel your subscription at any time through your account
How often will I receive coffee?
You choose your delivery frequency. This can be adjusted anytime to suit your routine.
Who can use this offer?
The £4.95 offer is intended for first-time customers trying Stiir for the first time.