Mixing Coffee and Energy Drinks: Safety and Effects

Quick answer

• Mixing coffee and energy drinks can lead to adverse health effects due to the combined stimulant load.
• High caffeine intake from both sources can cause jitters, anxiety, rapid heart rate, and digestive issues.
• The acidity of coffee can interact with the ingredients in energy drinks, potentially causing stomach upset.
• It’s generally recommended to consume coffee and energy drinks separately, if at all.
• Monitor your total daily caffeine intake from all sources to stay within safe limits.
• If you experience negative symptoms, reduce or eliminate your consumption of combined beverages.

Who this is for

• Individuals who consume both coffee and energy drinks regularly.
• Those curious about the potential health impacts of mixing these beverages.
• People looking for ways to manage their stimulant intake and understand its effects.

What to check first

Brewer type and filter type

The type of coffee maker you use (drip, French press, pour-over, espresso) and the filter material (paper, metal, cloth) can subtly influence the final taste and body of your coffee. However, when mixing with energy drinks, these nuances are largely overshadowed by the combined stimulant effects.

Water quality and temperature

Using filtered water can improve the taste of your coffee. The ideal brewing temperature for coffee is typically between 195°F and 205°F. However, when considering mixing with energy drinks, the primary concern shifts away from optimal coffee extraction and towards the overall physiological impact of the combined ingredients.

Grind size and coffee freshness

The grind size should match your brewing method (e.g., coarse for French press, fine for espresso). Freshly roasted and ground coffee beans offer the best flavor. Nevertheless, when combining with energy drinks, the freshness and grind of the coffee become secondary to the potential health risks.

Coffee-to-water ratio

A common starting point for drip coffee is a ratio of about 1:15 to 1:18 (coffee to water by weight). For example, 2 tablespoons of coffee for every 6 oz of water. This ratio affects the strength and flavor of your coffee. When mixing with energy drinks, this precise ratio is less critical than the total amount of caffeine you are consuming.

Cleanliness/descale status

Regularly cleaning your coffee maker and descaling it prevents mineral buildup that can affect taste and machine performance. For the purpose of mixing with energy drinks, the cleanliness of your coffee equipment is less of a concern than the combined stimulant effects.

Step-by-step (brew workflow)

This section describes a general coffee brewing workflow. When considering mixing with energy drinks, the focus should be on understanding the combined effects rather than optimizing the coffee itself.

1. Gather your ingredients: You’ll need coffee beans (or grounds), your chosen coffee maker, and an energy drink.

• What “good” looks like: You have all necessary components ready for brewing.
• Common mistake: Forgetting to have both coffee and the energy drink on hand.
• Avoid it by: Checking your pantry and fridge before you start.

2. Heat your water: For most brewing methods, heat filtered water to between 195°F and 205°F.

• What “good” looks like: Water is at the correct temperature, not boiling.
• Common mistake: Using boiling water, which can scorch the coffee.
• Avoid it by: Letting boiling water sit for about 30-60 seconds, or using a temperature-controlled kettle.

3. Grind your coffee (if using whole beans): Grind the beans to the appropriate size for your brewing method.

• What “good” looks like: Freshly ground coffee with the correct consistency.
• Common mistake: Using pre-ground coffee that has lost its freshness.
• Avoid it by: Grinding beans just before brewing.

4. Prepare your coffee maker: Add the coffee grounds to your brewer’s filter or chamber.

• What “good” looks like: The correct amount of coffee is in the brewer.
• Common mistake: Overfilling or underfilling the coffee basket.
• Avoid it by: Measuring your coffee accurately according to your desired ratio.

5. Start the brew: Pour hot water over the grounds according to your brewing method’s instructions.

• What “good” looks like: Water is evenly saturating the coffee grounds.
• Common mistake: Pouring water too quickly or unevenly.
• Avoid it by: Using a controlled pour, especially for pour-over methods.

6. Allow coffee to brew: Let the coffee extraction process complete.

• What “good” looks like: The coffee is dripping or steeping as expected.
• Common mistake: Interrupting the brewing process prematurely.
• Avoid it by: Following the recommended brew time for your method.

7. Prepare the energy drink: Open and have your energy drink ready.

• What “good” looks like: The energy drink is chilled and ready to be mixed.
• Common mistake: Not having the energy drink readily accessible.
• Avoid it by: Opening the can or bottle beforehand.

8. Combine the beverages: Pour the brewed coffee into a mug, then add the energy drink. The order of mixing can be adjusted based on preference, but the combined effect is the primary consideration.

• What “good” looks like: Both liquids are in the same container.
• Common mistake: Mixing too much at once, leading to an overwhelming stimulant effect.
• Avoid it by: Starting with small amounts of each to gauge your reaction.

9. Stir (optional): Gently stir the mixture if desired.

• What “good” looks like: The liquids are blended.
• Common mistake: Vigorous stirring, which can cause excessive foam.
• Avoid it by: Using a gentle stirring motion.

10. Consume cautiously: Sip the mixture slowly and be mindful of how your body reacts.

• What “good” looks like: You are aware of your physical sensations.
• Common mistake: Drinking the mixture too quickly without monitoring effects.
• Avoid it by: Taking small sips and pausing to assess your well-being.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Consuming large quantities of the mixture	Severe jitters, anxiety, heart palpitations, insomnia, digestive distress.	Limit intake to small amounts or avoid altogether. Monitor your total daily caffeine consumption.
Ignoring your body’s reaction	Escalation of negative symptoms, potential for panic attacks or serious health issues.	Stop consuming immediately if you feel unwell. Seek medical attention if symptoms are severe.
Not accounting for total caffeine intake	Exceeding safe daily caffeine limits, leading to chronic stimulant-related issues.	Track caffeine from all sources (coffee, energy drinks, soda, tea, supplements).
Mixing with high-sugar energy drinks	Sugar crash after the initial stimulant effect, potential for weight gain.	Opt for sugar-free energy drinks if you choose to mix, but be aware of artificial sweeteners.
Using this as a regular energy booster	Dependence on high stimulant levels, sleep disruption, burnout.	Prioritize adequate sleep, balanced nutrition, and stress management for natural energy.
Consuming on an empty stomach	Increased risk of stomach upset, heartburn, and faster absorption of stimulants.	Eat a balanced meal before consuming any stimulants.
Mixing with alcohol	Masking the effects of alcohol, leading to overconsumption and increased risks.	Never mix stimulants with alcohol; this is a dangerous combination.
Not considering individual caffeine tolerance	Experiencing adverse effects even with moderate amounts due to personal sensitivity.	Know your personal limits and start with very small amounts to test your tolerance.
Relying on this for extreme physical activity	Dehydration, electrolyte imbalance, and increased risk of cardiac events.	Stay well-hydrated with water and electrolytes during intense physical exertion.

Decision rules (simple if/then)

• If you are sensitive to caffeine, then do not mix coffee and energy drinks because the combined dose will likely cause adverse effects.
• If you are experiencing jitters or anxiety, then stop consuming the mixture immediately because your body is reacting negatively to the high stimulant load.
• If you are trying to manage your sleep, then avoid this mixture, especially in the afternoon or evening, because the combined caffeine can significantly disrupt your sleep cycle.
• If you have any pre-existing heart conditions, then do not mix coffee and energy drinks because the increased heart rate and blood pressure can be dangerous.
• If you are pregnant or breastfeeding, then avoid this mixture altogether because high caffeine intake can be harmful to the baby.
• If you are looking for a healthier energy boost, then consider natural alternatives like getting enough sleep or eating a balanced diet because mixing stimulants can have negative long-term health consequences.
• If you are concerned about your sugar intake, then choose sugar-free energy drinks if you decide to mix, but be aware that the stimulant effects remain the primary concern.
• If you are experiencing digestive issues after consuming the mixture, then reduce the amount of coffee or energy drink, or stop consuming it, because the acidity and ingredients can irritate your stomach.
• If you have consumed other caffeinated products today, then be extra cautious about adding more caffeine from coffee and energy drinks because you might unknowingly exceed safe daily limits.
• If you are a young adult or adolescent, then be particularly mindful of the risks, as your bodies may be more susceptible to the negative effects of high stimulant consumption.
• If you are considering this for a specific task requiring intense focus, then evaluate if the potential side effects (anxiety, jitters) outweigh the perceived benefits for concentration.

FAQ

Can I make coffee with an energy drink instead of water?

While technically possible to mix brewed coffee with an energy drink, it’s not recommended for health reasons. Using an energy drink as the sole liquid for brewing coffee would likely result in a very unpleasant taste and an extremely high stimulant concentration.

Is it safe to drink a cup of coffee and then an energy drink later in the day?

It can be safe for some individuals, but it depends heavily on your personal caffeine tolerance and the total amount consumed. It’s crucial to monitor your overall daily caffeine intake from all sources to avoid exceeding recommended limits, which can lead to adverse effects.

What are the main risks of mixing coffee and energy drinks?

The primary risks stem from the combined high levels of caffeine and other stimulants. This can lead to increased heart rate, anxiety, jitters, insomnia, digestive problems, and in severe cases, more serious cardiovascular issues.

How much caffeine is too much?

For most healthy adults, the FDA suggests up to 400 milligrams of caffeine per day is generally safe. However, individual tolerance varies significantly, and some people may experience negative effects at much lower doses.

Will mixing coffee and energy drinks give me more energy?

You might experience a temporary surge in energy due to the combined stimulant effect. However, this can often be followed by a crash and may lead to negative side effects like anxiety and jitters, making it an unsustainable way to boost energy.

What happens if I drink a lot of coffee mixed with energy drinks?

Drinking large quantities can lead to caffeine intoxication, characterized by symptoms like rapid heartbeat, tremors, nausea, dizziness, and even panic attacks. It can also exacerbate underlying health conditions.

Are there any benefits to mixing coffee and energy drinks?

From a health perspective, there are no known benefits to mixing coffee and energy drinks. The primary goal of combining them is usually to increase stimulant intake, which carries significant risks.

Should I be worried about the sugar content in energy drinks when mixing?

Yes, if you’re using high-sugar energy drinks, the combined beverage can contribute to excessive sugar intake, leading to a sugar crash and potential long-term health issues like weight gain and diabetes.

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

• Specific recipes or proportions for mixing coffee and energy drinks. (Consider consulting a nutritionist for safe beverage consumption advice.)
• Detailed physiological responses for individuals with specific medical conditions. (Consult your doctor for personalized health guidance.)
• The long-term effects of chronic, high stimulant consumption. (Research reputable health organizations for information on stimulant use and its consequences.)