Coffee begins as fruit.
Fine Robusta from Vietnam and Yirgacheffe G1 from Ethiopia.
Roasted light, on purpose.
Roasted light to keep more of the bean's caffeine and chlorogenic acids.
Who it's for
Performance+ is the cup before training. On ordinary days, it's the coffee for office hours and work on a deadline.
Tap a clip to watch it full screen.
The coffee
Both are roasted light to keep as much of the bean's caffeine and chlorogenic acids as we can.
Fine Robusta · Winey honey · Vietnam
Most cafés don't serve Fine Robusta, let alone light-roasted.
Price: ¥1,990 / 100 gtax included
About 5–12 cups (8–20 g a cup)
10% off 3+ bags · free shipping over ¥5,000 (tax incl.)
Yirgacheffe G1 · Kochere washed · Ethiopia
Price: ¥1,990 / 100 gtax included
About 5–8 cups (12–18 g a cup)
10% off 3+ bags · free shipping over ¥5,000 (tax incl.)
| Performance+ | Lifestyle |
|---|---|
| Caffeine per typical cup | |
| about 154 mg8 g, pour-over 1:15 | about 145 mg15 g, pour-over 1:15 |
| Taste | |
| Cherry, dark chocolate, honey; syrupy | Citrus, stone fruit, floral; clean and bright |
| Best for | |
| Before training, and work days | An everyday filter coffee |
Calculator
Choose your coffee, dose and brew method to estimate the caffeine and chlorogenic acids (CGA) in one cup. Add your body weight for a suggested serving.
Grams set the caffeine; the ratio sets the strength.
40–150 kg
Estimated from roast data · lot P-20261004
About 75 mg left at bedtime (65–85 mg)
For under 50 mg at bedtime, drink it before 14:45
Estimate based on an average half-life of 4–6 hours. Some people clear caffeine more slowly. 50 mg is our rule of thumb, not a medical limit.
Read: Caffeine, training and sleepDaily reference
Japan has no legal daily limit. Health Canada, the EU's EFSA and the US FDA use 400 mg a day as a reference for healthy adults. If you're pregnant or breastfeeding, or have a heart condition or anxiety, check with your doctor.
All figures are estimates from our roast data. Per gram of coffee: Performance+ about 23.9 mg caffeine and 44.3 mg CGA; Lifestyle about 12 mg caffeine and 30 mg CGA. Extraction is modelled per method. Grind, water temperature and time change the real figure, so treat every result as a guide.
Sources: Health Canada, EFSA Journal, 2015, US FDA, Journal of the International Society of Sports Nutrition, 2021
Brew guide
Paper filters catch most of the coffee oils (cafestol), which research links to higher LDL cholesterol. That's why we recommend pour-over.
Annual Review of Nutrition, 1997 · Food and Chemical Toxicology, 1997
Use a paper filter and a medium-fine grind. Start at 1:15: 8 g of coffee to 120 ml of water at about 93 °C, poured slowly over about 3 minutes. Take your grams from the serving guide.
Why this exists
I'm a personal trainer in Tokyo. For years I relied on chemical pre-workouts before training, and I wanted something simpler.
Cheap dark-roast robusta worked, but it tasted bad.
So I roast my own coffee, light: the coffee I wanted before training, and one I actually enjoy drinking.
— Founder, Optimized Roast
Science
A library of short, sourced summaries of coffee research.
How long caffeine stays in your body, and how to time your cup.
Last reviewed 7 Nov 2026
Why a lighter roast keeps more of the bean's chlorogenic acids.
Last reviewed 7 Nov 2026
Why we recommend pour-over with a paper filter.
Last reviewed 7 Nov 2026
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