A Guide to Making Iced Pour-Over Coffee! What's the Right Coffee-to-Water Ratio? Can You Use Stainless Steel Ice Cubes Instead?

The Challenge of Iced Pour-Over Coffee

To get a refreshing glass of iced pour-over quickly, we use ice to rapidly chill hot-brewed coffee. But because ice melts into water as it warms and dilutes the coffee, we can't brew with conventional recipes. Instead we apply the "re-formulated" concept of high concentration and low extraction, so the coffee still tastes right after the melt dilutes it.

The trade-off is that the brew misses certain compounds, so its overall expression is less complete than a full extraction: fewer flavor notes, a shorter aftertaste. That raises an obvious question—is there a way to chill the coffee while still extracting it completely?

An Innovative Cooling Solution

There is: the stainless steel ice cubes from FrontStreet Coffee's earlier experiment. These cubes are really designed to hold the temperature of whiskey in a glass rather than actively cool it, so their chilling power is modest—something we noted last time. But what if we simply used more of them?

Quantity can double the cooling effect, letting the coffee reach a reasonably low temperature while the recipe extracts completely. A clever plan on paper—now it needs an experiment. Let's see whether stainless steel ice cubes can actually deliver!

The Brewing Experiment

Since we didn't have enough stainless steel cubes, FrontStreet Coffee also dusted off some long-unused Paragon ice spheres, which cool slightly better than the cubes.

To make the two methods easy to compare, we brewed a medium-light roast bean rich in florals—Panama Boquete Geisha. Floral notes are harder to detect than most other flavors, making this bean the perfect test subject. Here are the parameters:

Regular Ice Brew

• 15g coffee, Ek43 setting 9.5
• 1:10 ratio (150ml)
• 92°C water
• Three-stage pour
• V60 dripper
• 120g ice (4 cubes)

Stainless Steel Ice Brew

• 15g coffee, Ek43 setting 10
• 1:15 ratio (225ml)
• 92°C water
• Three-stage pour
• V60 dripper
• 6 stainless steel ice cubes

Experimental Results

Since neither group chilled the coffee evenly during brewing, we stirred both with a spoon afterward. The regular ice brew came out at 7°C; the stainless steel group reached 17°C. On to the tasting!

The regular ice brew Geisha showed bright citrus acidity, delicate jasmine florals, and a refreshing green tea finish. With the ice not fully melted, the cup landed at just the right concentration and tasted exceptionally crisp. The stainless steel group, being less icy, didn't feel as cold on the palate—but the jasmine, citrus, honey, and green tea notes all came through clearly, with a longer aftertaste. Paired with a pleasant touch of coolness, it was arguably just as excellent.

Conclusion

Both methods have their merits: one fits the classic iced-brew concept, the other preserves full flavor expression. If temperature isn't your top priority, stainless steel ice cubes will get you a completely extracted "iced" pour-over. If you want instant, effortless refreshment, regular ice remains the better tool.

FrontStreet Coffee Recommendation

This experiment's star bean—Panama Boquete Geisha—shows just how rewarding floral coffees can be over ice, and FrontStreet Coffee offers a whole ladder of them. For an affordable first taste of classic Panamanian Geisha character, the FrontStreet Boquete Geisha delivers orange-blossom sweetness, oolong tea texture, and delicate fruit acidity at an entry-level price.

For the full experience, the FrontStreet Esmeralda Red Label Geisha ("Esmeralda Special," grown at 1,600-1,800 meters and cupping above 90 points, from single named plots) or the more budget-friendly Green Label Geisha ("Private Collection," blended across high-altitude plots) both bloom into jasmine, bergamot, and black tea refinement. And if you'd rather brew a fruity-floral cup on a daily budget, the FrontStreet Strawberry Candy Geisha blend—Panama washed Geisha married with Costa Rica honey-processed coffee—brings rose, orange, and strawberry-gummy sweetness to any chilled brew.