Making Bulletproof Coffee in a Shaker Bottle

Quick answer

• Yes, you can make Bulletproof Coffee in a shaker bottle.
• It’s a quick and convenient method for busy mornings.
• You’ll need your brewed coffee, MCT oil, and grass-fed butter or ghee.
• Shake vigorously to emulsify the fats into the coffee.
• The key is to ensure your coffee is hot enough to melt the butter and oil.
• Expect a slightly less frothy texture than a blender method, but similar taste and benefits.

Who this is for

• Busy individuals who need a fast way to prepare their morning coffee.
• Travelers or campers looking for a portable and simple Bulletproof Coffee solution.
• Those who don’t own or want to use a blender for their daily coffee routine.

What to check first

• Brewer type and filter type:
• While this guide focuses on using a shaker bottle for the final mixture, you’ll still need to brew your coffee first. Ensure your brewing method (drip, pour-over, French press, etc.) produces coffee that is hot enough to melt the fats. For methods like French press, a fine mesh filter is generally preferred to minimize sediment. If using paper filters, ensure they are rinsed to avoid paper taste.

• Water quality and temperature:
• Use filtered water for the best-tasting coffee. The ideal brewing temperature for coffee is typically between 195°F and 205°F. For Bulletproof Coffee, having very hot coffee is crucial for properly emulsifying the butter and MCT oil. If your coffee isn’t hot enough, the fats may not fully incorporate, leading to an oily layer.

• Grind size and coffee freshness:
• The grind size will depend on your brewing method. For drip machines, a medium grind is standard. For French press, a coarse grind is best. Always use freshly roasted and ground coffee beans for optimal flavor. Pre-ground coffee can lose its aromatic compounds quickly.

• Coffee-to-water ratio:
• A common starting point for Bulletproof Coffee is a 1:1 ratio of coffee to water by volume, or roughly 2 tablespoons of coffee grounds per 6 oz of water. However, this can be adjusted to your preference. For the shaker bottle method, you’ll be adding your pre-brewed coffee, so focus on brewing your coffee to your preferred strength first.

• Cleanliness/descale status:
• Ensure your coffee maker is clean. Any residue can impart off-flavors into your brew. If you haven’t descaled your coffee maker recently, it’s a good time to do so. Mineral buildup can affect both the taste of your coffee and the performance of your machine.

Step-by-step (brew workflow)

1. Brew your coffee:

• What to do: Prepare your coffee using your preferred brewing method. Aim for a strong brew.
• What “good” looks like: A flavorful, hot cup of coffee.
• Common mistake and how to avoid it: Using lukewarm coffee. Ensure your brewer is producing coffee at the optimal temperature (195-205°F).

2. Gather your ingredients:

• What to do: Have your brewed coffee, unsalted grass-fed butter (or ghee), and MCT oil ready.
• What “good” looks like: All components are measured and within reach.
• Common mistake and how to avoid it: Forgetting an ingredient. Double-check you have everything before you start.

Have your brewed coffee, unsalted grass-fed butter (or ghee), and MCT oil ready. Using high-quality grass-fed butter is key for the best flavor and benefits.

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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3. Pour hot coffee into the shaker bottle:

• What to do: Carefully pour your hot, freshly brewed coffee into a sturdy shaker bottle. Fill it no more than two-thirds full to allow room for shaking.
• What “good” looks like: The shaker bottle contains hot coffee without overflowing.
• Common mistake and how to avoid it: Overfilling the shaker. This can lead to spills and a mess.

4. Add grass-fed butter (or ghee):

• What to do: Add 1-2 tablespoons of unsalted grass-fed butter or ghee to the hot coffee in the shaker.
• What “good” looks like: The butter is in the shaker, ready to be emulsified.
• Common mistake and how to avoid it: Using salted butter. This can make your coffee taste salty.

5. Add MCT oil:

• What to do: Add 1-2 tablespoons of MCT oil to the shaker bottle.
• What “good” looks like: The MCT oil is added to the mixture.
• Common mistake and how to avoid it: Adding too much MCT oil initially. Start with a smaller amount if you’re new to MCT oil to avoid digestive upset.

6. Secure the lid tightly:

• What to do: Ensure the lid of your shaker bottle is screwed on very tightly. Check that any seals are properly in place.
• What “good” looks like: The lid is firmly attached and sealed.
• Common mistake and how to avoid it: Not securing the lid properly. This is a recipe for a hot coffee explosion.

7. Shake vigorously:

• What to do: Shake the bottle vigorously for 30-60 seconds. You want to create a vortex that emulsifies the fats into the coffee.
• What “good” looks like: The coffee has a creamy, slightly frothy texture, and there are no visible oil slicks or chunks of butter.
• Common mistake and how to avoid it: Not shaking long enough. Insufficient shaking will result in separated fats.

8. Check for emulsification:

• What to do: Open the lid carefully and observe the texture.
• What “good” looks like: The coffee should be uniformly creamy and opaque, resembling a latte.
• Common mistake and how to avoid it: Assuming it’s emulsified without checking. If you see separation, shake for another 30 seconds.

9. Pour and enjoy:

• What to do: Pour your emulsified Bulletproof Coffee into your favorite mug.
• What “good” looks like: A delicious, creamy beverage ready to drink.
• Common mistake and how to avoid it: Drinking directly from the shaker if it’s not designed for that. Pouring into a mug is generally safer and more pleasant.

10. Clean the shaker immediately:

• What to do: Rinse the shaker bottle thoroughly with hot water and soap immediately after use.
• What “good” looks like: The shaker is clean and free of coffee residue.
• Common mistake and how to avoid it: Letting the shaker sit uncleaned. Dried coffee and fat residue can be difficult to remove.

Common mistakes (and what happens if you ignore them)

Decision rules (simple if/then)

• If your coffee has an oily layer on top, then you likely didn’t shake long enough or your coffee wasn’t hot enough, because fats need heat and agitation to emulsify.
• If you experience digestive discomfort after drinking Bulletproof Coffee, then you may have added too much MCT oil, because it can be difficult for some people to digest in large quantities.
• If your Bulletproof Coffee tastes watery, then your initial coffee brew might have been too weak, because the fats are diluted.
• If your shaker bottle feels hot to the touch after shaking, then be extra careful when opening it, because the contents are under pressure from the heat.
• If you see clumps of butter floating in your coffee, then your coffee was not hot enough to melt the butter completely, so ensure your brew is at the optimal temperature.
• If your shaker bottle leaks when you shake it, then the lid is not sealed properly, so tighten it securely or check the gasket.
• If you prefer a thicker, frothier texture, then a blender is generally a better tool, because it incorporates more air.
• If you want to avoid potential digestive issues with MCT oil, then start with a smaller amount (e.g., 1 teaspoon) and gradually increase it, because your body needs time to adapt.
• If your Bulletproof Coffee has a “cheesy” or rancid smell, then your butter may have gone bad or was not stored properly, so use fresh, high-quality grass-fed butter or ghee.
• If you are making this on the go, then ensure you have a reliable, leak-proof shaker bottle that can withstand hot liquids.
• If your goal is to maximize the creamy texture, then shake for a full 60 seconds to ensure maximum emulsification.

FAQ

Can I use any type of coffee maker?

Yes, you can use any coffee maker that produces hot coffee. The key is the temperature of the brewed coffee, not the brewing method itself.

What kind of shaker bottle should I use?

Choose a shaker bottle that is made of heat-resistant material, is leak-proof, and has a secure lid. Stainless steel or high-quality BPA-free plastic designed for hot beverages are good options.

How much butter and MCT oil should I use?

A common starting point is 1-2 tablespoons of unsalted grass-fed butter (or ghee) and 1-2 tablespoons of MCT oil per 8-12 oz of coffee. Adjust to your personal preference and tolerance.

What happens if I don’t emulsify it properly?

If the fats aren’t emulsified, you’ll end up with an oily layer on top of your coffee, which can be unpleasant to drink and may lead to digestive upset.

Can I add other ingredients to my shaker Bulletproof Coffee?

While the classic recipe is simple, you could experiment with a tiny pinch of cinnamon or vanilla extract, but be aware that additional ingredients might affect emulsification. Keep it simple for best results in a shaker.

Is this method as good as using a blender?

The shaker bottle method is very convenient and produces a similar taste and nutritional profile. However, a blender will typically create a thicker, frothier texture by incorporating more air, which some people prefer.

How long will my Bulletproof Coffee stay warm in the shaker?

It will stay warm for a limited time, similar to any beverage in a standard shaker bottle. For longer warmth, consider using an insulated travel mug after emulsifying the coffee.

Can I make Bulletproof Coffee ahead of time in the shaker?

It’s best to make it fresh right before drinking. The emulsification is most effective when the coffee is hot, and it’s designed to be consumed immediately.

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

• The specific health benefits or scientific claims associated with Bulletproof Coffee. (Next: Research articles on ketogenic diets, intermittent fasting, and the effects of MCT oil).
• Detailed comparisons of different brands of MCT oil or grass-fed butter. (Next: Consult product reviews or specialized food blogs).
• Recipes for flavored Bulletproof Coffee variations beyond the basic preparation. (Next: Explore coffee recipe books or online culinary forums).
• The impact of Bulletproof Coffee on specific medical conditions or dietary needs. (Next: Consult with a registered dietitian or healthcare professional).