When does our coffee peak?

Every coffee we roast is a living thing; changing, opening up, and evolving in the weeks after roast. We've gotten questions recently about when our coffees reach peak flavor and resting times, so here's what we've found: as a general guideline, our coffees exhibit their best attributes around the 4–6 week mark off roast. Our roasting style, solubility, and brewing preferences all align at that time, generally producing some of the best cups we've had.

The reason comes down to off-gassing. In the days immediately after roast, CO₂ released during the roasting process is still actively escaping from the bean. While the coffee is drinkable, that residual gas can interfere with even extraction. This mutes clarity and causing uneven bloom. As the beans settle over the following weeks, solubility improves, acids soften into balance, and the full complexity of the origin has room to express itself.

That said, coffee can be incredibly dynamic, and no guideline replaces your own palate. There are coffees that brew beautifully at 2 weeks off roast, as well as some that excel at 8 weeks. Please try the coffee when you see fit and enjoy it as it evolves.

Days 1-7

Heavy off-gassing. CO₂ escapes quickly; extraction can be uneven. Wait if you can.

Weeks 1-3

Degassing slows. The cup starts to show itself. Some coffees are already excellent here.

peak window

Weeks 4-6

Helm's sweet spot; roast character, origin clarity, and solubility align.

6-8+ weeks

Some coffees continue to excel here. Others begin to fade. Taste and judge for yourself.

Competition-level recipes, made approachable

These recipes are inspired by Justin Bull's open service routine at the 2025 World Brewers Cup in Jakarta; where he represented both Helm and the United States, placing 6th in the world. They're built around the same principles: hybrid brewing technique, precise ratios, and coffee that rewards attention.

Pour Over
Hario Switch or April Hybrid

Parameters

  • Coffee dose 15 g
  • Water 250 g
  • Ratio 1 : 16.7
  • Temperature 91–97°C / 196–206°F
  • Brewer mode 40% percolation, 60% immersion
  • Draw down 2:20 – 3:30
  • Grind size Medium-coarse

Method

  1. Rinse your filter with hot water, discard the rinse, and let the brewer cool slightly. Add 15 g of ground coffee and level the bed.

  2. Valve open. Begin a steady circle pour up to 100 g total.

  3. At 0:55, close the valve, and begin the second pour. Continue in circles up to 200 g, then shift to a gentle center pour for the final 50 g, finishing at 250 g total.

  4. At 2:00, open the valve to begin draw down.

  5. Allow the bed to drain fully. Draw down is filter and coffee dependent. Typically anywhere from 2:20–3:30 from start.

Hybrid brewing tip: The Hario Switch and April Hybrid both let you dial the ratio of percolation to immersion. This can shift the balance and changes how sweetness, clarity, and body express themselves in the cup. Start at 40/60 and adjust from there.
Espresso
Weber Fast Flow Basket

Parameters

  • Dose 18 g
  • Yield 45 – 54 g
  • Ratio 1 : 2.5 – 1 : 3
  • Extraction time 10 – 20 seconds
  • Pressure 6 – 7 bar (if adjustable)
  • Temperature 93 – 94°C / 199 – 201°F
  • Grind 2 – 4 clicks coarser than standard

Method

  1. Set your grinder noticeably coarser than your standard espresso setting. The puck should offer low resistance.

  2. Dose 18 g, distribute evenly, and tamp with consistent, level pressure.

  3. Begin the shot. We target a fast, free-flowing extraction: aim for the full yield in 10–22 seconds.

  4. If the shot runs longer than 22 seconds, grind coarser. If under 10 seconds, grind slightly finer.

  5. Taste for sweetness and clarity. These fast shots are characteristically bright, clean, and low in bitterness with a lighter body than a traditional espresso.

Why do we pull fast shots? Research from ETH Zurich (2024) found that fast, coarser-ground shots achieve over 80% of maximum extraction while retaining volatile aromatic compounds that longer 25–30 second shots actively break down. The result is a sweeter, more aromatic espresso. A particularly compelling match for light-roasted, fruit-forward coffees. If your machine supports pressure profiling, dropping to 6 bar prevents puck compression and keeps flow even throughout the shot.