How to Make an Iced Latte at Home That Is Better Than What You Are Buying at the Coffee Shop

By PURE EARTH COFFEE  ·  May 23, 2026  ·  Coffee Recipes

The Two Things That Make a Great Iced Latte

An iced latte has two components: espresso and cold milk over ice. Everything about the quality of the final drink traces back to the quality of these two inputs. The espresso must be strong, properly extracted, and freshly pulled — not diluted, not over-extracted, not pulled from stale pre-ground coffee. The milk must be cold, full-fat or barista-formula oat milk, and in the correct ratio to the espresso. Most coffee shop iced lattes underperform on both counts: the espresso is pulled from pre-ground commercial blends at inconsistent parameters, and the milk is often ultra-pasteurized and over-chilled to the point where its sweetness is muted. At home with quality specialty coffee and fresh cold milk, you control both variables completely.

The Espresso: What You Need and How to Pull It

A proper iced latte uses a double espresso — approximately 36-40ml extracted from 18-20g of ground coffee in 25-30 seconds. The recipe for our SUMMIT Espresso Blend: 18g in, 36g out, in 27 seconds at 200F. This produces a concentrated, sweet, balanced shot with the caramel and chocolate backbone that makes SUMMIT specifically excellent in milk drinks — its flavor profile is designed to hold its identity at the dilution ratio that milk creates. Pull the shot and let it rest for 30 seconds before adding to ice — this allows the crema to settle and prevents the shot from dispersing chaotically through the cold milk. Our Pinnacle Espresso Blend also performs exceptionally in iced lattes, with slightly more fruit-forward character that brightens through the milk.

The Milk: Ratio, Temperature, and Type

The correct milk ratio for an iced latte is 1 part espresso to 3-4 parts milk. For a 12oz iced latte: 36ml double espresso and 300ml cold milk. Full-fat whole milk produces the richest, most satisfying iced latte — its fat content carries flavor and produces a creamy mouthfeel that lower-fat options cannot match. Oat milk barista formula (Oatly Barista, Minor Figures) is the best non-dairy alternative — the higher fat and stabilizer content produces a body and mouthfeel closer to whole milk than any other oat milk variant. Avoid skim or low-fat milk for iced lattes — the resulting drink is watery and flat regardless of espresso quality.

The Ice: The Variable Everyone Ignores

Ice dilutes your iced latte as it melts. Large, dense ice cubes melt more slowly than small or hollow cubes, producing less dilution over the 10-15 minutes it takes to drink the latte. If your current iced lattes are watery by the halfway point, the ice is melting too fast — upgrade to a large-cube ice tray (Tovolo Sphere Molds or large square cube trays). Pour cold milk directly over the ice before adding espresso — the milk chills the ice slightly and slows subsequent melting. Add espresso last, poured slowly down the side of the glass to create a visual layered effect before stirring. Explore our full specialty coffee lineup to find your preferred espresso base for milk drinks.

A great iced latte costs $2 in ingredients and 5 minutes of attention. The $7 coffee shop version has one advantage over what you can make at home: convenience. On quality, you win every time. -- PURE EARTH COFFEE