Why Coffee Causes Shakiness

Quick answer

• Caffeine is the main culprit behind coffee-induced shakiness.
• Your personal sensitivity to caffeine plays a huge role.
• Dehydration can amplify caffeine’s effects.
• Too much coffee, too fast, is a common trigger.
• Consider the type and roast of your coffee beans.
• Sometimes, it’s not just the coffee itself.

What this problem usually is (and is not)

• This is usually about caffeine’s stimulant effect on your nervous system. It’s a pretty direct link.
• It’s not usually a sign your coffee maker is broken. That’s a different kind of problem.
• It’s rarely a sign of a serious underlying medical condition, though it’s always good to talk to your doctor if you’re concerned.
• It’s not about the temperature of the coffee, unless it’s so hot you’re just generally stressed.
• It’s not about the water quality, unless that water is making you dehydrated.
• This isn’t about a bad brew causing a weird taste; it’s about the chemical reaction in your body.

Likely causes (triage list)

Caffeine Intake:

• Amount consumed: Did you have more than usual? Or a stronger brew? Easy to check.
• Frequency: Are you downing multiple cups back-to-back? Watch your intake.
• Type of bean/roast: Darker roasts sometimes have slightly less caffeine, but it’s not a hard rule. Check the origin.

Personal Sensitivity:

• Genetics: Some folks are just wired to feel caffeine more. Nothing to do but know yourself.
• Tolerance: If you drink coffee daily, you build tolerance. Skipping a day can make you sensitive again.

Hydration & Diet:

• Dehydration: Not drinking enough water can make caffeine’s effects feel stronger. Are you drinking water alongside your coffee?
• Empty stomach: Coffee on an empty stomach hits harder. Did you eat anything?
• Other stimulants: Are you also having soda, energy drinks, or certain medications? They add up.

Brewing Factors (Indirect):

• Concentration: A super-strong brew will have more caffeine. Did you use too much coffee grounds?
• Brew method: Some methods extract more caffeine than others. Espresso, for example, is concentrated.

Fix it step-by-step (brew workflow)

1. Assess your intake: Before brewing, think about how much you’ve had today already.

• Good looks like: A clear head and a realistic idea of your caffeine limit.
• Common mistake: Just brewing on autopilot. Avoid this by pausing for a second.

2. Choose your coffee wisely: Opt for a lighter roast if you’re sensitive, or a decaf blend.

• Good looks like: Selecting beans that you know won’t send you over the edge.
• Common mistake: Grabbing the first bag you see without thinking. Avoid this by reading the label or knowing your beans.

3. Measure your grounds precisely: Use a scale for accuracy. Aim for a standard ratio, like 1:15 to 1:18 (coffee to water by weight).

• Good looks like: Consistent measurements every time. Your coffee tastes the same, and you know the strength.
• Common mistake: Eyeballing the grounds. Avoid this by using a scale; it’s a game-changer.

For consistent measurements every time, consider investing in a good coffee scale. It’s a game-changer for precise brewing.

No products found.

4. Heat your water correctly: Aim for 195-205°F (90-96°C) for most brewing methods.

• Good looks like: Water that’s hot enough to extract but not boiling furiously.
• Common mistake: Using boiling water. Avoid this by letting the kettle sit for 30-60 seconds after it boils.

To ensure your water is at the perfect temperature, a quality water kettle with temperature control can make a big difference.

No products found.

5. Brew with a controlled pour (if applicable): For pour-over, pour slowly and evenly.

• Good looks like: A steady stream of water saturating the grounds without overflowing.
• Common mistake: Dumping all the water in at once. Avoid this by doing a bloom first, then pouring in stages.

6. Don’t over-extract: Be mindful of brew time. Too long can lead to bitterness and potentially extract more compounds that affect you.

• Good looks like: The coffee finishes brewing within the recommended time for your method.
• Common mistake: Letting the coffee drip endlessly. Avoid this by stopping the brew when it’s done.

7. Dilute if necessary: If you made a strong brew, consider adding a little hot water or milk.

• Good looks like: A milder cup that still tastes good.
• Common mistake: Drinking it straight if it’s too intense. Avoid this by adjusting the strength after brewing.

8. Hydrate alongside: Drink a glass of water before or with your coffee.

• Good looks like: Feeling balanced, not jittery.
• Common mistake: Forgetting to drink water. Avoid this by keeping a water bottle handy.

9. Listen to your body: If you start feeling shaky, stop drinking.

• Good looks like: Recognizing the signs and taking a break.
• Common mistake: Pushing through it. Avoid this by respecting your body’s signals.

10. Consider decaf: If it happens consistently, switch to decaf or half-caf.

• Good looks like: Enjoying the ritual and flavor without the jitters.
• Common mistake: Insisting on full-caf when it doesn’t work for you. Avoid this by exploring alternatives.

Prevent it next time

• Know your limits: Pay attention to how much caffeine you consume daily.
• Hydrate: Always drink water with your coffee.
• Use a scale: Measure your coffee grounds and water for consistency.
• Control brew temp: Keep water between 195-205°F.
• Don’t over-extract: Stick to recommended brew times.
• Eat something: Avoid brewing on a completely empty stomach.
• Watch other sources: Be mindful of caffeine in soda, tea, and energy drinks.
• Consider decaf: If sensitivity is an issue, try decaf or half-caf options.
• Clean your gear: A clean machine brews better coffee and avoids weird tastes.
• Descaling: Regularly descale your machine to keep it running efficiently.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Drinking too much coffee	Shakiness, anxiety, jitters, rapid heart rate	Reduce intake, switch to decaf, or dilute your brew.
No water intake	Amplified caffeine effects, dehydration	Drink a glass of water with each cup of coffee.
Coffee on an empty stomach	Faster caffeine absorption, increased jitters	Eat a small snack before or with your coffee.
Using stale coffee grounds	Off-flavors, less potent brew (can still cause jitters if too much)	Use freshly ground beans; store them properly.
Incorrect water temperature	Under- or over-extraction, poor flavor	Use a thermometer or wait 30-60 seconds after boiling.
Over-extraction	Bitter taste, potential for more unwanted compounds	Stick to recommended brew times for your method.
Ignoring personal sensitivity	Persistent shakiness and anxiety	Reduce caffeine, try decaf, or consult a doctor if extreme.
Mixing with other stimulants	Synergistic effects, extreme jitters and anxiety	Be aware of all caffeine sources throughout the day.
Not cleaning the machine	Can affect taste, but not directly shakiness itself	Regular cleaning and descaling.
Using pre-ground coffee	Loses freshness and flavor quickly	Grind beans just before brewing for best results.

Decision rules (simple if/then)

• If you feel shaky immediately after drinking coffee, then your caffeine intake was likely too high for your current tolerance.
• If you feel shaky after your first cup of the day, then you might be more sensitive than you realize or dehydrated.
• If you feel shaky and also have a headache, then you might be experiencing caffeine withdrawal from a previous day, or dehydration.
• If you feel shaky and your heart is racing, then reduce your intake significantly or consider a break from caffeine; see a doctor if it persists.
• If you’re brewing espresso and feel shaky, then consider drinking a smaller shot or diluting it with hot water (an Americano).
• If you switched to a new, stronger-tasting coffee and feel shaky, then it likely has a higher caffeine concentration.
• If you’re trying to cut back on caffeine but still want the ritual, then switch to a decaf or half-caf blend.
• If you feel shaky after drinking coffee and haven’t eaten, then have a snack; food slows absorption.
• If you notice shakiness more on days you skip breakfast, then eating a balanced breakfast is key.
• If you’ve been drinking coffee for years without issue and suddenly feel shaky, then check if you’ve changed your diet, sleep, or medication.
• If you’re concerned about your reaction to coffee, then talk to your doctor; they can rule out other causes.

FAQ

Q: Is shakiness from coffee dangerous?

A: For most people, mild shakiness is temporary and not dangerous. However, if it’s severe, persistent, or accompanied by other symptoms like chest pain, seek medical advice.

Q: How much caffeine is too much?

A: The FDA suggests up to 400 mg of caffeine per day is generally safe for most adults. This is about four or five cups of coffee. It varies a lot by individual sensitivity.

Q: Can the type of coffee maker cause shakiness?

A: Not directly. The maker influences the brew, but the shakiness comes from the caffeine content, not the machine itself. Some methods might extract more caffeine.

Q: Does decaf coffee have any caffeine?

A: Yes, decaf coffee still contains a small amount of caffeine, usually around 2-15 mg per cup, compared to 80-100 mg in regular coffee.

Q: I get shaky even with decaf sometimes. Why?

A: It could be the small amount of residual caffeine, or it might be a psychological effect from the ritual of drinking coffee, or even dehydration.

Q: Should I stop drinking coffee if it makes me shaky?

A: Not necessarily. You can try reducing your intake, brewing weaker coffee, switching to decaf, or ensuring you’re well-hydrated and have eaten.

Q: How long does the shakiness last?

A: Caffeine’s effects typically peak about 30-60 minutes after consumption and can last for several hours, depending on your metabolism.

Q: Can I build up a tolerance to caffeine?

A: Yes, regular consumption leads to tolerance. This means you might need more caffeine to feel the same effects, but it also means you might feel less shaky with your usual amount.

Q: Is there a difference between coffee shakiness and anxiety shakiness?

A: While the physical sensation can be similar, coffee shakiness is directly linked to caffeine intake. Anxiety shakiness can have many triggers.

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

• Specific medical conditions: This page doesn’t diagnose or treat health issues. If you have ongoing concerns about your health, consult a medical professional.
• Detailed caffeine content of specific roasts/beans: While general trends exist, actual caffeine levels vary widely. Look for specific product information if this is critical for you.
• Comparison of coffee maker models: This is about a brewing outcome, not the equipment itself.
• Advanced brewing techniques: We’re focusing on basic fixes for shakiness, not latte art or competition brewing.
• Drug interactions: If you’re taking medication, always discuss caffeine intake with your doctor.