Grind and Brew Coffee Maker

Can coffee make you gassy?” – Coffee is one of the most consumed substances in the world – and contrary to what some people will have you believe, it’s not generally bad for your health – in fact, it’s pretty good. 

But, if you’re getting bloated after drinking coffee, you might be wondering can coffee make you gassy or is something else going on? And we’re here to explain…

Can Coffee Make You Gassy?

Can Coffee Make You Gassy
Can Coffee Make You Gassy

YES. One reason for this is that caffeine in coffee causes the production of stomach acid – and, when this happens, foods in the stomach cause create more gas than normal as they break down – this can create coffee bloat, or lead to acid reflux or symptoms like burping after coffee.

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In other people it’s the acidity of coffee that causes irritation and gas.

However, this isn’t the normal reaction to coffee, instead, if you develop coffee bloat, it’s more likely to be something else in the brew triggering your problems so ask yourself…

Could Mould in Coffee Cause Gassy?

Can Coffee Make You Gassy
Can Coffee Make You Gassy

Yes. According to research drinking four cups of coffee would only see you consume two per cent of the amount of mycotoxins that would be deemed harmful to health.

The reason is that while coffee beans might carry mould when they are harvested or stored, roasting the beans kills up to 95 per cent of certain mycotoxins and almost 50 per cent of others. Caffeine also affects it – so, by the time you brew your coffee grounds there’s likely to be very little mycotoxins within your cup.

However, if you’re not convinced and want to try and see what happens if you drink ‘clean’ coffee, you can buy coffee beans that claim to be totally can coffee make you gassy (like Bulletproof Coffee).

How To Tell Whether Coffee is Causing Your Gassy?

Can Coffee Make You Gassy
Can Coffee Make You Gassy

Simply, keep a food diary for a few days and do some experiments.

Try just drinking coffee with milk and see if you get any kind of bloating or gas in the hours afterwards. If you do, it might be the coffee or the milk. So…

Try drinking black coffee and ask yourself if black coffee also creates gas.

Try changing your breakfast to something without dairy in it and see if that stops your symptoms. If it does, you might be able to tolerate a little bit of milk in coffee but adding it on top of breakfast cereal with milk is too much for your digestive system to handle.

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Also, ask yourself if it could be something else in your breakfast that causes the bloating.

Or, if you’re eating toast made with frozen bread, that is also a common trigger for gas (find out why frozen bread specifically can be an issue here)

This should give you a clearer picture as to whether it’s actually the coffee causing flatulance and bloat – or something else.

Keeping a good food and symptom diary is a bit of an art though so check out our tips can coffee make you gassy to writing one here.

What To Do If Coffee Makes You Gassy

Can Coffee Make You Gassy
Can Coffee Make You Gassy

The good news is, you might not need to give up coffee completely to beat your bloating.

And ideally you don’t want to. Not just because coffee tastes good, but because it’s also good for you.

Moderate coffee intake provides important anti-oxidants, may help reduce the risk of certain cancers and regular coffee drinkers have even been shown to live longer ( and yes, even instant coffee can be healthy).

Because of this, it’s bettter to find a way to drink coffee and not experience gas, than quit it completely.

And the way to do that is to make some simple tweaks in terms of can coffee make you gassy the type of coffee beans you choose, what you choose to put in your coffee or, how you consume it.

Pick Lighter Roasts

The more acidic the coffee, the more likely it is to irritate the stomach lining in ways that might cause bloating – and, lighter roasts make for less acidic coffee than dark ones on can coffee make you gassy.

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Try Cold Brew Coffee

Heat increases the acidity of coffee and so, choosing cold brew, which as the name suggests doesn’t use heat may help reduce the effects on your stomach.

Switch to Decaffeinated Coffee

If you think it’s the caffeine in the coffee causing you problems then it’s not a huge surprise that this might help!

And don’t worry, things will still keep moving if you drink decaf coffee – studies comparing coffee with caffeine and coffee without show that both stimulate the bowel.

If you’re worried how you’re going to wake up in the morning if you don’t have caffeine, you might need to check out can coffee make you gassy our guide to ways to raise your energy (some of them work in a matter of minutes).

Don’t Drink it on an Empty Stomach

While some people find there are no issues with drinking coffee on an empty stomach, but if you do get gas, bloating or belching when you drink coffee before eating, then it’s likely affecting acid levels in your stomach.

Consuming coffee alongside food gives the acid in your stomach something to work on can coffee make you gassy making it potentially less likely to irritate.

Give Your Milk a Makeover

If you suspect that an issue with dairy products might be to blame for your symptoms, then consider changing the type of milk you add.

Plant-based dairy-free milks (like flax milk) are the obvious option, but not the only one.

Lactose-free milks, or lowered sugar-milks like ReMilk have lactose removed and so might not trigger problems if you are lactose intolerant.

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Also, have a look for A2 milk. This is a milk from cows that don’t produce the A1 protein which causes the main problems when drinking milk.

How To Release Gassy When It Happens

Can Coffee Make You Gassy
Can Coffee Make You Gassy

If you’re reading this already all puffed up, you might be wondering how to relieve your bloating.

There are a few different methods.

One of the easiest would be to swap your next cup of coffee with one of peppermint tea – this relaxes the valves in the digestive tract letting the gas make it’s way through the system – and, as an added bonus, peppermint tea has been shown to raise energy – so, you’ll still get a bit of a kick from your drink.

The other option, head for a walk around the block. Coffee stimulates the bowel – but so does movement and so, heading out for a walk, jog or cycle can also help get things moving.

Some other ideas, include using activated charcoal or other medications to reduce gas.


So there you have it. All the reasons can coffee make you gassy – and some solutions to them that mean that if you love drinking coffee, you can still have your favourite start to the day.

If you do suffer regularly from bloating (and have had a chat to our GP if you need to), you might want to check out our ‘why does’ section which explains why lots of different foods might trigger excess gas – and again, gives some very specific suggestions as to how to reduce the effects if you eat or drink them regularly.

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Happy drinking with Grind And Brew Coffee Maker!

FAQs of Can Coffee Make You Gassy

1. Can drinking coffee give you gas?

Yes, drinking coffee can cause gas in some people. This is because coffee contains compounds called polyphenols and caffeine, which can stimulate the production of gas in the digestive system.

2. Why does coffee make you gassy?

Coffee can make you gassy because it contains polyphenols and caffeine, which stimulate the production of gas in the digestive system. Additionally, drinking coffee can also relax the muscles in the digestive tract, which can slow down digestion and lead to the buildup of gas.

3. Is it normal to feel gassy after drinking coffee?

Yes, it is normal to feel gassy after drinking coffee, especially if you are sensitive to the compounds in coffee that can stimulate gas production. However, if you experience excessive gas or other digestive symptoms after drinking coffee, you may want to speak with a healthcare provider to rule out an underlying digestive issue.

4. Does decaf coffee cause gas?

Decaf coffee can still contain small amounts of caffeine and polyphenols, so it is possible that it could cause gas in some people. However, because decaf coffee contains less of these compounds than regular coffee, it may be less likely to cause gas in some individuals.

5. Can adding cream or sugar to coffee make you gassy?

Adding cream or sugar to coffee is unlikely to cause gas on its own. However, if you are already sensitive to coffee and its effects on the digestive system, adding cream or sugar may exacerbate your symptoms.

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6. Can switching to tea help reduce gas?

Switching to tea may help reduce gas for some people, as tea contains fewer compounds that can stimulate gas production than coffee. However, it is important to note that different types of tea can still contain caffeine, which can have similar effects on the digestive system as coffee.

7. Can drinking coffee cause bloating?

Yes, drinking coffee can cause bloating in some people. This is because the compounds in coffee can stimulate gas production and slow down digestion, which can lead to the buildup of gas and bloating.

8. Can drinking cold brew coffee prevent gas?

Cold brew coffee may be less likely to cause gas than hot brewed coffee, as the cold brewing process results in a lower acidity level and fewer soluble compounds in the final product. However, it is still possible for cold brew coffee to cause gas in some individuals.

9. Can drinking coffee cause diarrhea?

Yes, drinking coffee can cause diarrhea in some people, especially if they are sensitive to the compounds in coffee that can stimulate the digestive system. Additionally, coffee can also have a laxative effect, which can further contribute to diarrhea.

10. Can drinking coffee cause constipation?

While coffee is often thought of as a natural laxative, it can also cause constipation in some people. This is because coffee can dehydrate the body, leading to harder stools and difficulty with bowel movements. Additionally, the caffeine in coffee can stimulate the nervous system and cause the muscles in the digestive tract to relax, leading to slower digestion and constipation.

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