A glass of plain water is one of the fastest ways to ease heartburn. Research published in Digestive Diseases and Sciences found that drinking about 200 ml (roughly 7 ounces) of water raised stomach pH above 4 within one minute, an effect comparable to the onset speed of over-the-counter antacids. The relief is short-lived, lasting about three minutes compared to twelve for antacids, but it’s free, available immediately, and a solid first move while you figure out your next step.
Beyond plain water, several other drinks can help calm that burning feeling in your chest, and a few popular ones will make it worse. Here’s what works, what doesn’t, and why.
Why Plain Water Works So Quickly
Heartburn happens when stomach acid flows back into the esophagus, the tube connecting your throat to your stomach. Water helps by diluting the acid in your stomach and physically washing acid back down from the esophagus. That temporary bump in stomach pH gives your esophageal lining a brief break from irritation.
Sipping water between meals is generally better than drinking large amounts during a meal. A full stomach puts more pressure on the valve at the top of the stomach, making acid more likely to escape upward. Small sips with food are fine, but saving most of your fluids for between meals reduces the overall volume pressing against that valve.
Alkaline Water Offers a Longer Buffer
Alkaline water with a pH of 8.8 goes a step further than regular water. It permanently deactivates pepsin, a digestive enzyme that causes damage when it reaches the esophagus. Once pepsin encounters water at that pH, it shuts down irreversibly. Even if the environment becomes acidic again afterward, the enzyme doesn’t bounce back.
Alkaline water also has roughly eight times the buffering capacity of standard bottled water, meaning it takes significantly more acid to drag its pH down to the level where pepsin reactivates (below 4.6). If plain water gives you three minutes of relief, alkaline water extends the window. You can find commercially available alkaline water at most grocery stores. Look for brands that list a pH of 8.0 or higher on the label.
Plant-Based Milks Over Whole Dairy
Milk is a classic heartburn remedy, and it does coat the esophagus temporarily. The problem is that full-fat dairy contains saturated fat, which slows stomach emptying and can trigger more acid production once the initial soothing effect wears off. The result is often a rebound flare that’s worse than what you started with.
Low-fat cow’s milk may actually help, since it retains the coating benefit with less fat to slow things down. But plant-based milks are a safer bet overall. Almond milk, oat milk, soy milk, and cashew milk are all naturally low in fat and slightly alkaline. Almond milk in particular tends to be a favorite among people with frequent reflux because of its mild flavor and thin consistency, which makes it easy to sip throughout the day.
Ginger Tea Speeds Up Digestion
Ginger has a direct effect on how quickly your stomach empties its contents into the small intestine. It increases gastric motility, meaning food moves through faster and spends less time sitting in your stomach pressing against the valve that’s supposed to keep acid where it belongs. The active compounds in ginger also reduce nausea, which often accompanies bad heartburn episodes.
To make ginger tea, steep a few thin slices of fresh ginger root in hot water for five to ten minutes. You want it warm, not scalding, since very hot liquids can irritate an already inflamed esophagus. Avoid ginger ale as a substitute. Most commercial brands contain very little actual ginger and are carbonated, which creates a separate problem (more on that below).
Aloe Vera Juice Reduces Acid Production
Aloe vera juice works through a different mechanism than most drinks on this list. A compound in aloe vera called glycoprotein reduces the secretion of both stomach acid and pepsin. It also shifts your body’s inflammatory balance, increasing anti-inflammatory signals while dialing down the proteins that drive inflammation. That combination makes it useful not just for acute flares but for protecting the esophageal lining over time.
Look for aloe vera juice that’s labeled for internal use and has had the latex component (aloin) removed, since aloin acts as a harsh laxative. Start with a small amount, around two to four ounces, to see how your body responds. Some people find it mildly laxative even in purified form.
What to Avoid: Carbonated Drinks
Carbonation is one of the most reliable heartburn triggers. When carbonated liquid hits your stomach, the gas expands and creates pressure. That pressure weakens the muscular valve between your stomach and esophagus, reducing its resting strength by 30 to 50 percent for a sustained period of about 20 minutes. In a study measuring this effect, 62 percent of participants experienced enough weakening that the valve dropped to a level normally considered incompetent, meaning functionally unable to keep acid out of the esophagus. Tap water, tested under the same conditions, caused no reduction at all.
This applies to all carbonated beverages: sparkling water, soda, seltzer, kombucha, and beer. Even “healthy” sparkling water with no added sugar or acid still delivers the same gas-driven pressure to your stomach. If you’re dealing with active heartburn, flat drinks only.
Peppermint Tea: A Counterintuitive Risk
Peppermint tea seems like it should be soothing, and it does relax smooth muscle. That’s the problem. The valve keeping acid in your stomach is made of smooth muscle, and peppermint relaxes it. Research from the Medical University of South Carolina confirmed that peppermint relaxes the smooth muscle in the lower esophagus. For someone with indigestion from a tight, spasming esophagus, this can help. For someone with heartburn caused by acid flowing the wrong direction, it removes the one barrier keeping acid out.
If heartburn is your main symptom, skip peppermint tea. Chamomile is a better herbal option. It has mild anti-inflammatory properties without the muscle-relaxing effect on the esophageal valve.
Apple Cider Vinegar: No Evidence It Helps
Apple cider vinegar is one of the most commonly recommended home remedies for heartburn on the internet, and there is zero published clinical evidence supporting it. Harvard Health Publishing reviewed the available literature and found no studies in medical journals addressing the use of raw apple cider vinegar for heartburn. The logic behind the remedy (that heartburn is caused by too little acid, not too much) doesn’t hold up for the vast majority of cases.
What’s more, vinegar is acidic, with a pH around 2 to 3. Drinking it when your esophagus is already irritated by acid exposure risks making the inflammation worse and can erode tooth enamel over time. This is one remedy worth skipping entirely.
A Quick Reference for Heartburn Drinks
- Best immediate relief: A full glass (7+ ounces) of plain water
- Best sustained relief: Alkaline water with a pH of 8.8 or higher
- Best daily sipping option: Almond milk, oat milk, or other low-fat plant-based milk
- Best for sluggish digestion: Fresh ginger tea, served warm
- Best for esophageal protection: Aloe vera juice (aloin-removed, food-grade)
- Avoid: Anything carbonated, peppermint tea, citrus juice, coffee, alcohol, apple cider vinegar
Citrus juices, coffee, and alcohol didn’t need studies to earn their spot on the avoid list. Citrus and coffee are both highly acidic, and alcohol relaxes the esophageal valve similarly to peppermint while also irritating the stomach lining directly. If you need a warm caffeinated drink, low-acid teas like chamomile or non-citrus herbal blends are your safest choice.