Create Your Own Bulletproof Coffee at Home

Quick answer

• Use high-quality, low-toxin coffee beans.
• Blend your brewed coffee with unsalted, grass-fed butter and MCT oil.
• Aim for a smooth, emulsified texture.
• Start with smaller amounts of butter and oil, then adjust to taste.
• Use a powerful blender for the best results.
• Don’t overdo the fat; it’s about balance.

Who this is for

• Anyone looking to replicate the Bulletproof Coffee experience at home.
• Those interested in a high-fat, low-carb breakfast or energy boost.
• Coffee lovers who enjoy experimenting with their brews.

What to check first

Brewer type and filter type

Your coffee maker is the foundation. Drip machines, pour-overs, French presses – they all work. But some methods might extract more of the “good stuff” from the beans. Paper filters can trap some oils, which might be a consideration if you’re going for a super-rich cup.

Water quality and temperature

Good water makes good coffee. If your tap water tastes funky, your coffee will too. Filtered water is usually the way to go. For brewing, aim for water between 195-205°F. Too cool, and you won’t extract enough flavor. Too hot, and you can scorch the grounds.

Grind size and coffee freshness

Freshly ground beans are key. Pre-ground coffee loses its oomph fast. The grind size depends on your brewer. Coarse for French press, medium for drip, fine for espresso. For bullet coffee, you want a robust, flavorful brew to stand up to the additions.

Coffee-to-water ratio

This is where personal preference really kicks in. A common starting point for regular coffee is around 1:15 to 1:17 (coffee to water by weight). For bullet coffee, you might want a slightly stronger brew, so consider leaning towards 1:15. Don’t be afraid to adjust.

Cleanliness/descale status

A dirty brewer is a flavor killer. Mineral buildup from hard water can affect taste and performance. Descale your machine regularly. Give your grinder a clean too. A clean setup means a clean cup.

Step-by-step (brew workflow)

1. Select your coffee beans.

• What to do: Choose high-quality, low-toxin coffee beans. Look for beans processed using methods that minimize mycotoxins, if that’s a concern for you.
• What “good” looks like: Beans that smell fresh and have a rich aroma.
• Common mistake: Using stale or low-quality beans. This is the base, so start strong.
• Avoid it: Buy beans in smaller batches and store them in an airtight container away from light and heat.

2. Grind your beans.

• What to do: Grind your beans just before brewing to the appropriate size for your brewer.
• What “good” looks like: A consistent grind that smells fragrant.
• Common mistake: Using a blade grinder that produces uneven particle sizes.
• Avoid it: Invest in a burr grinder for a more uniform grind.

3. Heat your water.

• What to do: Heat filtered water to the optimal brewing temperature, typically 195-205°F.
• What “good” looks like: Water that’s hot but not boiling. A thermometer helps.
• Common mistake: Using boiling water, which can scald the coffee grounds.
• Avoid it: Let boiling water sit for about 30 seconds before pouring, or use a temperature-controlled kettle.

4. Brew your coffee.

• What to do: Brew your coffee using your preferred method (drip, pour-over, French press). Use your chosen coffee-to-water ratio.
• What “good” looks like: A strong, flavorful brew that’s not bitter.
• Common mistake: Under-extracting (weak, sour coffee) or over-extracting (bitter coffee).
• Avoid it: Pay attention to brew time and water flow.

5. Measure your fats.

• What to do: Measure out your unsalted, grass-fed butter and MCT oil. Start with smaller amounts, like 1-2 tablespoons of butter and 1 teaspoon of MCT oil per 8-12 oz of coffee.
• What “good” looks like: Clearly measured ingredients ready to go.
• Common mistake: Guessing amounts, leading to an overly greasy or bland drink.
• Avoid it: Use measuring spoons and be precise, especially when you’re starting out.

When measuring your fats, ensure you’re using high-quality unsalted grass-fed butter for the best flavor and nutritional profile. This grass-fed butter is a great option for your Bulletproof Coffee.

Kerrygold Grass-Fed Pure Irish Salted Butter Sticks, 16 OZ

• KERRYGOLD PURE IRISH SALTED BUTTER: Our European-style salted butter is made on family farms from the milk of grass-fed cows, who graze year round on lush Irish pastures, for a golden yellow butter that's rich & creamy.
• ALL-NATURAL, ALL-PURPOSE: Kerrygold Salted Butter is a great all-purpose, all-natural butter. Keep a block in your butter dish to spread on fresh bread, or enhance the flavor of your baking & cooking.
• KERRYGOLD BUTTER: Made from the milk of grass-fed cows, our pure Irish butter is rich and soft. From salted butter to unsalted, garlic and herb to reduced fat, Kerrygold butter elevates your dishes.
• MORE THAN BUTTER: Beloved for our richly flavorful butter, we put the same care and quality into our all-natural cheese, like our classic Dubliner, aged cheddar, Swiss, and Blarney Castle cheese.
• TASTE THE DIFFERENCE: Kerrygold butter & cheese are made with milk from grass-fed cows not treated with rBST or other growth hormones* & raised on Irish family dairy farms. This all-natural milk is what makes our products so flavorful & creamy.

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6. Combine coffee and fats.

• What to do: Pour your hot brewed coffee into a blender. Add the measured butter and MCT oil.
• What “good” looks like: All ingredients are in the blender, ready to be emulsified.
• Common mistake: Adding fats to hot coffee in a mug and trying to stir. It won’t blend properly.
• Avoid it: Always use a blender for the emulsification step.

7. Blend until emulsified.

• What to do: Blend on high speed for 20-30 seconds, or until the mixture is frothy and creamy, with no visible oil or butter separation.
• What “good” looks like: A smooth, latte-like consistency with a nice foam on top.
• Common mistake: Not blending long enough, resulting in an oily, separated drink.
• Avoid it: Blend until you see a noticeable change in texture and appearance.

8. Pour and enjoy.

• What to do: Pour your freshly blended bullet coffee into a mug.
• What “good” looks like: A warm, creamy, satisfying beverage.
• Common mistake: Letting it sit too long, as it can separate.
• Avoid it: Drink it immediately after blending for the best texture.

Common mistakes (and what happens if you ignore them)

Decision rules (simple if/then)

• If your coffee tastes bitter, then reduce the brew time or grind size slightly because over-extraction is likely.
• If your coffee tastes sour or weak, then increase the brew time or grind size slightly because under-extraction is likely.
• If your blended coffee is separating, then blend for a longer duration because insufficient emulsification is the cause.
• If you experience digestive upset from MCT oil, then reduce the amount or switch to a different type of oil because your body might need time to adjust.
• If your bullet coffee tastes too “buttery,” then reduce the amount of butter in your next brew because you’ve added too much.
• If your bullet coffee tastes too oily, then reduce the amount of MCT oil because you’ve added too much.
• If your coffee doesn’t blend smoothly, then ensure your blender is powerful enough because some blenders struggle with emulsification.
• If you’re new to bullet coffee, then start with 1 tablespoon of butter and 1 teaspoon of MCT oil per cup because this is a conservative starting point.
• If you want a thicker, latte-like consistency, then blend for an extra 10-15 seconds because longer blending time increases froth.
• If your bullet coffee tastes bland, then consider using a darker roast or adding a pinch of salt because the added fats can mute subtle coffee flavors.

FAQ

What is Bulletproof Coffee?

It’s a high-fat beverage made by blending brewed coffee with unsalted butter and MCT oil. It’s often consumed as a breakfast replacement.

Can I use regular coffee?

Yes, you can use regular coffee, but for the true Bulletproof Coffee experience and to potentially minimize toxins, high-quality, low-toxin beans are recommended.

What kind of butter should I use?

Unsalted, grass-fed butter is typically recommended. The “grass-fed” aspect is often cited for its nutrient profile.

What is MCT oil?

MCT stands for Medium-Chain Triglycerides. It’s a type of fat that’s easily digested and can be quickly converted into energy by the body.

How much butter and MCT oil should I use?

Start conservatively, perhaps with 1-2 tablespoons of butter and 1 teaspoon of MCT oil per 8-12 ounces of coffee, and adjust to your taste and tolerance.

Will this make me gain weight?

Bulletproof coffee is calorie-dense. If consumed in addition to your regular diet without adjusting other calorie intake, it could contribute to weight gain.

Can I use a different type of oil?

While MCT oil is standard, some people experiment with other oils. However, MCT oil is specifically chosen for its digestive properties and energy conversion.

Is it healthy?

Proponents claim it offers sustained energy, mental clarity, and appetite suppression. However, it’s a high-fat, low-carbohydrate drink, and its long-term health effects are debated. Consult a healthcare professional for personalized advice.

How do I avoid the oily separation?

The key is proper blending. Use a high-powered blender and blend for at least 20-30 seconds until the mixture is fully emulsified and creamy.

What this page does NOT cover (and where to go next)

• Detailed nutritional breakdowns of Bulletproof Coffee. (Explore resources on ketogenic diets or specific macronutrient tracking.)
• Specific recommendations for low-toxin coffee bean brands. (Research coffee certifications and sourcing information.)
• Advanced brewing techniques for specific coffee origins. (Look into specialty coffee brewing guides.)
• The science behind MCT oil absorption and metabolism. (Consult articles on sports nutrition or biochemistry.)
• Recipes for other coffee-based beverages. (Search for general coffee recipe collections.)