How illy Explains Espresso, Timing, and Summer Coffee Creations

If you’ve ever felt less hungry after your morning coffee or worried it might upset your stomach, you’re not alone. Many coffee drinkers wonder why a simple cup can affect appetite, digestion, and even mood—especially when paired with food. illy, the Italian coffee brand known for precision and education, recently held an espresso tasting in Shanghai to address these questions head-on, while also showcasing creative summer espresso drinks.

The short answer? Drink espresso after meals to aid digestion and avoid appetite suppression. For best results, aim for 2–3 cups daily, each made with 6–7 grams of Arabica beans extracted under 9 bars of pressure for no more than 30 seconds.

What Espresso Does to Your Body—and When to Drink It

Coffee’s most famous compound, caffeine, stimulates the sympathetic nervous system. That’s why a shot of espresso wakes you up, boosts circulation, and makes you feel warmer and less tired. But that same stimulation suppresses appetite and increases gastric acid, which can irritate an empty stomach—especially for those with ulcers or sensitive digestion. That’s why illy advises against drinking espresso before meals.

On the flip side, drinking espresso after eating aids digestion by supporting stomach acid production. It may even help prevent allergy symptoms. Caffeine’s stimulating effect on the sympathetic nervous system can counterbalance histamine-driven reactions like asthma or hay fever—if taken at the first sign of an attack. Some allergy sufferers report preventive relief just from knowing they’ve had their coffee, adding a psychological comfort factor.

But moderation is key. More than 3–4 cups per day often leads to jitters, heart palpitations, or loss of balance due to excessive caffeine. illy recommends sticking to 2–3 cups daily for most people.

The Science Behind a Perfect Shot of Espresso

Every element of espresso brewing matters. To craft a high-quality shot, illy’s coffee experts specify exact parameters: 6–7 grams (about 50 coffee beans) of Arabica beans, ground to a fine consistency with particles around 1 micron in diameter. This coffee is then brewed under 9 atmospheres of pressure using roughly 30 milliliters (30cc) of water heated to 90°C. The entire extraction must finish in under 30 seconds, yielding about 30cc of liquid.

The result? A dark, rich shot topped with a reddish-brown crema—a complex layer containing around 1,500 chemical compounds, including 800 volatile and 700 soluble substances. This crema-covered espresso isn’t just bold; it’s chemically intricate, offering aromas reminiscent of cocoa, vanilla, flowers, and fresh fruit. The 1000+ identifiable scents include sweet, nutty, and roasted notes created during Maillard reactions in the roasting process.

Unlike slower brew methods, espresso’s high pressure and short extraction time pack more dissolved solids into a smaller volume, resulting in a thicker mouthfeel and richer crema. Paradoxically, despite the intensity, espresso actually contains less caffeine per unit than many drip brews due to its brief contact time. That’s part of why it’s a favorite among coffee enthusiasts seeking depth without excess volume.

illy’s Summer Espresso Creations You Can Make at Home

At the Shanghai event, baristas from illy Coffee University demonstrated five refreshing espresso-based drinks tailored for summer. Each uses double espresso as a base, modified with ice, milk, spirits, or syrups for a cool twist.

1. Espresso Freddo (Iced Espresso)

This is the simplest recipe: combine a double shot of espresso with ice in a shaker, add water and simple syrup, shake, then strain. The ice preserves the crema’s aroma while adding a chilled, thick texture—perfect for hot days. No special tools needed.

2. Mojito Coffee (Espresso Mojito)

A bold mix of espresso, vodka, mint leaves, and crushed ice. It’s a cocktail-meets-coffee drink for evening sipping, combining caffeine kick with minty refreshment.

3. Cappuccino Freddo Two Layers

Layered drink starting with a double espresso and crushed ice, then topped with a thick layer of cold milk foam. Visually striking with its black-and-white contrast, it delivers strong espresso flavor softened by creamy foam.

4. Affogato (Espresso Over Ice Cream)

Pour a cooled double espresso over a scoop of vanilla ice cream, drizzle with toffee syrup, and sprinkle chocolate chips. It’s a crowd-pleaser that blends bitter and sweet in every bite.

5. New Age (Espresso Cocktail)

A cosmopolitan-style mix: cooled espresso, vodka, orange liqueur, ice, and a scoop of ice cream, finished with chocolate flakes. It’s aromatic, boozy, and perfect for adventurous coffee drinkers looking for something international and indulgent.

These drinks were first introduced in select illy partner cafes in Shanghai in mid-June. They show how versatile espresso can be beyond the traditional cup—especially when adapted for seasonal enjoyment.

What illy Stands for in Coffee Culture

As Zhang Guojun, General Manager of illy China, stated: “As a leader in the coffee industry, illy is committed not only to delivering authentic espresso but also to spreading coffee knowledge globally. With five years of operation in Shanghai and plans to open the renowned illy Art Collection Gallery in China, we hope more consumers will connect with the heritage and craft behind every cup.”

Frequently Asked Questions

How much coffee is used in a standard espresso shot according to illy?

Illy specifies using 6–7 grams of Arabica coffee beans—approximately 50 beans—for a single shot of espresso.

What are the ideal brewing conditions for espresso?

The recommended parameters are 90°C water, 9 atmospheres of pressure, and an extraction time under 30 seconds, yielding about 30cc of espresso liquid.

When is the best time to drink espresso for digestion and minimal side effects?

Illy advises drinking espresso after meals to aid digestion and avoid appetite suppression or stomach irritation. Drinking it on an empty stomach is not recommended.

How many cups of coffee per day does illy recommend?

Illy suggests limiting intake to 2–3 cups daily to avoid negative effects like jitters or loss of balance. More than 4 cups often leads to discomfort for most people.

What are the main chemical compounds in espresso crema?

Espresso crema contains around 1,500 chemical substances, including 800 volatile and 700 soluble compounds, contributing to its complex aroma and flavor.

Can I make illy’s summer espresso drinks at home?

Yes, all five drinks—including Espresso Freddo, Mojito Coffee, and Affogato—are designed with simple techniques and common ingredients for home preparation.

Recommended FrontStreet Blends for Espresso-Based Drinks

For making espresso drinks like those featured in illy’s summer lineup, FrontStreet Coffee’s Classic Blend offers excellent crema and a balanced, approachable profile—ideal for milk-based or iced espresso creations. For a richer, more intense base, try the Black Cocoa Blend, which delivers bold flavors and a thick, velvety texture perfect for layered or cocktail-style drinks. Both blends are optimized for espresso machines and deliver consistent results. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.