Articles referenced below:
The 4 mothers: a unified theory of espresso making recipes
Basic Lesson On Steaming Milk
How to correctly freeze espresso coffee beans
#howto #espresso #coffee #documentation #overview
Knowledge that will help you make better espresso
If you want to make good espresso at home, some basic espresso knowledge will help you do that. This guide covers things that are good to know using information from Decent Espresso's documentation. Read the sections that interest you, or work through them in order.
1. The 4 Mothers: A Simple Way to Think About Espresso Recipes
Source: The 4 mothers: a unified theory of espresso making recipes
Most espresso recipes are variations of four basic approaches. The authors call these the "4 Mothers." If you understand these four, you can figure out how to dial in almost any coffee.
The Four Recipes
1. The Classic
What it is: The standard espresso. 1:2 ratio (for example, 18g of coffee in, 36g of espresso out) in 25–30 seconds.
When to use it: Medium roasts, blends, or anytime you want a balanced shot.
2. The Turbo
What it is: A fast shot. Coarser grind, less coffee, shorter time. Often 1:2.5 ratio in about 15 seconds.
When to use it: Light roasts. It brings out acidity and clarity, and reduces bitterness.
3. The Allonge
What it is: A long shot. Higher ratio (1:3 or more), finer grind, longer time (35–45 seconds).
When to use it: Dark roasts. It gives you a thicker body and more intense flavor, but it's easier to over-extract.
4. The Slow Flow
What it is: Starts with low pressure, then slowly increases. Often called "Slayer-style."
When to use it: Very light roasts or delicate coffees. It can bring out sweetness and complexity.
These aren't rigid rules. They're families of recipes. The idea is to give you a starting point. If a coffee isn't working as a Classic, try it as a Turbo. The article explains how pressure profiling (available on machines like the DE1) lets you explore these options more fully.
Key Takeaway: Learn these four approaches, and you'll have a framework for troubleshooting. You'll know what to try next when a shot isn't right.
2. How to Steam Milk
Source: Basic Lesson On Steaming Milk (Video)
Steaming milk is two steps: adding air, then heating. Here's how it works.
The Two Phases
Stretching (adding air): Put the steam tip just below the surface of the milk. You should hear a light tearing or chirping sound. This adds air to create foam. Do this for the first few seconds until the milk volume increases by about 20–25%.
Heating (mixing): Lower the pitcher so the tip is deeper. This creates a whirlpool that mixes the foam into the milk and heats it evenly. Stop at 55–65°C (140–150°F).
What You're Aiming For
You want microfoam—tiny bubbles that make the milk look glossy and feel velvety. If you get large bubbles, you added too much air. If you get no foam, you didn't add enough.
Basic Steps
1. Purge the steam wand to clear out water.
2. Position the tip just below the surface and open the valve fully.
3. Stretch for a few seconds, then lower the pitcher to create a vortex.
4. Stop at the right temperature.
5. Wipe the wand and purge it again.
6. Swirl the pitcher and pour.
Key Takeaway: It's a simple two-step process. With a little practice, you can consistently get good texture.
3. Freezing Coffee Beans the Right Way
Source: How to correctly freeze espresso coffee beans
Freezing coffee beans is a good way to keep them fresh. But you have to do it correctly. Here's the method from the article.
Why Freeze?
Coffee goes stale over time. Freezing slows that process down significantly. If you buy a large amount of good coffee, you can freeze portions and use them over several weeks or months without losing quality.
The Right Way to Do It
1. Divide into portions. As soon as you get the coffee, split it into the amounts you'll use for one session (single doses). Use small, airtight containers or vacuum-sealed bags. Remove as much air as you can.
2. Use good containers. The article suggests sous vide bags because they don't use plasticizers. .
3. Freeze. Put the portions in the coldest part of your freezer.
4. Thaw without opening. Take a portion out of the freezer and let it come to room temperature while still sealed. This prevents moisture from condensing on the cold beans.
5. The beans might have to rest. Beans frozen this way are in "suspended animation". Thus, if your beans taste best after 4 or 6 weeks of resting at room temperature, that still needs to happen. So you might still have to let them rest if you froze them right after roasting.
Common Questions
Does freezing ruin beans? No, if you do it this way, it preserves them.
Do they need to rest after thawing? Yes, if they're usually best a few weeks after roasting, that's still the case now.
Does it change the flavor? In blind tests, properly frozen beans taste the same as fresh.
Key Takeaway: Freezing works. Portion the beans, seal them well, and always thaw before opening.