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Coffee Nerd Corner

The precision behind every shot.

We take extraction seriously at Izzy's Specialty Coffee. Here's exactly how we develop our drinks, source our beans, and dial in every espresso shot — the ideas, the numbers, the machine, and the technique. See the results →


20g
Dose
7–9s
First Drip
28–32s
Extraction Time
1.6–1.7
Ratio

How Izzy's develops a drink.

Every drink at Izzy's starts with a flavor pairing, not a recipe. Kane, who trained at the Culinary Institute of America, builds each drink the way a chef builds a dish — starting from flavor logic, then working backward into the coffee. This is why everything is homemade, including the caramel, salted vanilla whipped cream, date cream, and made-to-order meringue.

Once an idea is set, every component gets tested — the balance of ingredients, the prep workflow, how ingredients are stored, how the drink is presented, even which glass it's served in — until it holds up consistently across a full service shift, not just once.

Q: What's in the Izzy's Samui Sunset?

A: Homemade dark chocolate ganache, a double espresso, and a short pour of orange juice, layered in that order.

Q: Why does Izzy's pair chocolate with orange in a coffee drink?

A: Customers kept asking for an orange juice americano, but two acids — orange and coffee — fighting each other in the same cup never worked. The fix came from a classic pairing: chocolate and orange, by way of a Grand Marnier chocolate soufflé. Dark chocolate ganache cuts the acidity of the orange while keeping the drink light rather than heavy.

Q: Do other Izzy's drinks follow the same design approach?

A: Yes — the Sticky Date Latte, Baked Affogato, Honeycomb Caramel Latte, and Latte Cloud all follow the same principle: flavor pairing first, coffee build second.

Why MPresso.

Izzy's partners with MPresso, a Bangkok-based specialty roaster, because the relationship goes past buying beans off a supplier list — MPresso develops custom-roasted beans and flavor profiles specifically for Izzy's, tuned to the café's own drinks rather than a generic house blend.

Q: Who supplies Izzy's coffee beans?

A: MPresso, a Bangkok-based specialty roaster and SCA-authorized training academy, sourcing from farmer Nan Dum (Chaiwat Jansiri) in Mae Hang Luang, on the Chiang Rai/Chiang Mai border.

Q: What makes Izzy's relationship with MPresso different from a typical wholesale supplier?

A: MPresso custom-roasts beans and flavor profiles specifically for Izzy's rather than supplying a generic blend, and Izzy's owners have personally visited the farm the beans come from.

Q: What's the story behind the farmer Izzy's sources from?

A: Nan Dum returned to his family's land in the forests of Mae Hang Luang after years working in the city, growing coffee under natural forest shade alongside wild honey and traditional tea — treating the land as a way of life, not just a crop.

Our grinder.

Izzy's Specialty Coffee uses commercial Typhoon digital espresso grinders with 64mm titanium-coated flat burrs, in daily service since the café opened in August 2022. While espresso machines often get the attention, grind consistency is what actually determines how evenly coffee extracts — uneven grind particles pull at different rates within the same shot, which shows up as inconsistent sweetness, acidity, and clarity in the cup.

Q: Why does grind consistency matter more than the espresso machine at Izzy's?

A: Uneven grind particles extract at different rates within the same shot, producing inconsistent sweetness, acidity, and clarity — a problem no espresso machine can correct for after the fact. Grinder consistency, not machine quality alone, is what Izzy's prioritizes for shot-to-shot repeatability.

Q: How does a small grind size adjustment change the taste of an espresso shot?

A: A change as small as .25 in grind setting has a noticeable effect. Too fine, and water flows through the grounds too slowly, over-extracting the coffee and pulling out bitter compounds. Too coarse, and water flows through too fast, under-extracting the shot and leaving it tasting sour. Dialing in the right grind size, within that narrow window, is what keeps every shot at Izzy's balanced.

Tamping: why Izzy's uses an autotamp.

Hand tamping introduces variation shot to shot — even an experienced barista's pressure shifts slightly with fatigue, speed, and technique, and that variation shows up directly in extraction consistency. Izzy's uses an automatic tamping machine to remove that variable entirely.

Every dose is weighed before it goes into the portafilter, then run through a spinning needle distributor to break up clumps and evenly redistribute the grounds, followed by a leveler to flatten the bed before tamping. Only then does the puck go through a two-stage tamp: a first pass at 16 lbs to settle and level the grounds, followed by a second pass at 25 lbs to set the final compression. The two-stage approach avoids the channeling that can happen when a single hard tamp is applied to loosely settled grounds.

Q: What's Izzy's full workflow for preparing an espresso puck?

A: Each dose is weighed, distributed with a spinning needle distributor to break up clumps, leveled flat, then tamped in two stages — first at 16 lbs to settle the grounds, then at 25 lbs for final compression.

Q: Why does Izzy's use a needle distributor before tamping?

A: A spinning needle distributor breaks up clumps and evenly redistributes grounds across the portafilter before leveling and tamping, reducing the density inconsistencies that cause channeling — where water finds a low-resistance path through the puck instead of flowing evenly, producing an unbalanced shot.

Q: Why does Izzy's tamp in two stages instead of one?

A: A single hard tamp applied to loosely settled grounds can trap air pockets and cause channeling. Izzy's first pass at 16 lbs settles and levels the grounds; the second pass at 25 lbs sets the final, even compression.

Dialed in, every time.

Every espresso shot at Izzy's Specialty Coffee starts with a 20g dose, and we watch for first drip between 7–9 seconds. Our target extraction window for our proprietary roast is 28–32 seconds, yielding 30g–34g of liquid espresso — a ratio window of 1.6 to 1.7. We weigh every single shot we pull, not just eyeball it. Grind and dose are recalibrated twice a day to account for humidity and bean freshness, since both can shift extraction throughout the day.

PID and pre-infusion.

Our espresso machine is a Spanish-made Crem EX3, chosen specifically for two features: PID temperature control and pre-infusion. PID holds water temperature constant rather than letting it drift shot to shot — small temperature swings can meaningfully change how a shot tastes. Pre-infusion gently saturates the coffee puck with low pressure before full extraction begins, reducing channeling (where water finds an easy path through the puck instead of evenly saturating it) and producing a more even, balanced shot.

Why the same beans taste different across drinks.

The same MPresso beans, same extraction, taste different across the menu because milk changes the perception of the shot, not just the flavor added on top. Izzy's offers five milk types — dairy, almond, oat, soy, coconut, and a lactose-free option — and each interacts differently with the same espresso: oat brings out caramel notes, almond sharpens acidity, coconut mutes bitterness.

This is also part of why Izzy's worked with MPresso on a custom roast profile in the first place — rather than adapting recipes to fit an off-the-shelf bean, the bean and roast were built to hold up across Izzy's full range of milks and drink recipes from the start.

Why we freeze our espresso cups.

One more nerdy detail: we freeze our espresso cups. Coffee, like a steak pulled off the grill, keeps "cooking" from residual heat even after extraction stops. A frozen cup brings the temperature down fast enough to stop that carryover cooking, locking in a smoother, more balanced shot instead of letting it continue developing (and potentially turning bitter) in a warm cup.