Does Drinking Baking Soda and Water Help Pass a Drug Test?

Today more than ever, drug tests have become increasingly prevalent, especially in the workplace. Taking a drug test can be a scary prospect, even for those not using any substances. As drug tests become more commonplace, more and more home remedies are devised to try and pass the various tests.

One of the most popular home remedies involves an inexpensive and readily available ingredient, baking soda. Curious as to how you can use baking soda to pass drug test, and if the method is indeed effective? Here is everything you need to know.

What is baking soda?

Baking soda, also known as sodium bicarbonate or bicarbonate of soda, is a versatile kitchen ingredient commonly used for baking purposes. Around the home, baking soda may also be used as an antacid, mouthwash, teeth whitener, air freshener, kitchen cleaner, and even as a laxative. Some athletes will consume this substance to prevent muscle soreness in a process called bicarbonate loading.

The multifunctionality of baking soda stems from one important property, its pH. This same feature has led to the widespread use of baking soda to try and game drug tests.

What is baking soda flush?

The baking soda flush involves drinking baking soda mixed with water to try and beat a drug test. This process has been around for a while, and it was more effective for older drug tests. Today, the baking soda flush will only work for specific drugs.

How to Use Baking Soda to Pass a Drug Test?

The internet offers varying directions for doing this, depending on where you look. While the goal remains the same, you’ll come across slightly changing baking soda dosages. We’ve outlined a consensus set of instructions on how to use baking soda to pass a drug test.

  1. Fill a glass with 8oz (240 ml) of water.
  2. Add 2 tablespoons of baking soda to the water and stir thoroughly.
  3. Drink the prepared solution as fast as you can.
  4. Fill your 8oz glass again with water and drink it.
  5. Make sure that you only urinate when you have a full bladder. Try to manage your urination so that you pee at least two times before you collect the urine. Your third time would give you the cleanest sample for the test.

What drugs can this method work for?

To get a better grasp of which drugs this method works for, we need to first understand the workings of a baking soda flush.

A commonly asked question is: does baking soda detox your body? And the simple answer is, no, it doesn’t. The active ingredient in baking soda is sodium bicarbonate, which is an alkaline substance. When consumed, baking soda will therefore raise the pH of your blood and urine.

Your kidneys are built to eliminate alkaline chemicals such as baking soda and methamphetamines. When you consume baking soda, your kidneys will be forced to prioritize the elimination of the competing alkaline chemical, i.e., sodium bicarbonate. This allows meth to remain in your bloodstream rather than urine. Therefore, you’re likely to pass a methamphetamine urine drug test during this window. Anecdotal evidence shows that baking soda is an effective solution for methamphetamine and some other amphetamines.

The efficiency of the baking soda flush can also be attributed to the fact that it is harder to excrete the alkaline methamphetamine into urine which is basic as well.

Conversely, the main THC metabolite is acidic. THC-COOH is therefore seamlessly excreted into alkaline urine, making baking soda an unsuitable solution for marijuana drug testing. If you’re wondering, how can I get weed out of my system fast, there are several paths that you can take. The right remedy will vary depending on the level of toxicity, the type of test you’re anticipating, and how long you have to prepare.

For instance, if you’re short on time and you’re expecting a urine test, you can use fake urine to pass drug test.

Besides weed, baking soda has also proven unreliable for nicotine, opioids, PCP, and cocaine drug tests. This method will also not work for blood, saliva, or hair follicle tests.

Negative Side Effects of baking soda method

Over the years, people have used baking soda to treat heartburn and indigestion, and even as a supplement by athletes. It’s therefore safe to assume that in small doses, this substance is pretty harmless.

However, in larger doses, baking soda can have dire consequences and cause serious health issues. According to a report by the American Journal of Emergency Medicine, acute toxicity from ingesting too much baking soda may manifest in several ways including;

Potential Side Effects of Baking Soda.
Mild dose (1-2 teaspoons) Nausea, vomiting, and diarrhea as the body tries to reduce the sodium concentration in the blood and restore homeostasis.
Large dose (more than 2 tablespoons at the same time)
  • Metabolic alkalosis – the blood is too alkaline
  • Muscle soreness
  • Gastric rupture – tearing of the stomach walls
  • Increased blood pressure
  • Heart problems
  • Hypernatremia – electrolyte imbalances due to excess sodium
  • Hypokalemia – low potassium levels
  • Kidney dysfunction
  • Urinary alkalinization


How long does meth stay in your system?

Methamphetamine is detectable by urine tests for up to 4 days after the last administration.

Will baking soda and water help you beat a drug test?

When used correctly, baking soda can be an effective home remedy to game a urine methamphetamine or amphetamines drug test. It’s important that you only take the recommended dosage of 2 teaspoons diluted with eight ounces of water. If you overdo it, you’re at risk of drinking baking soda dangers.

How does a baking soda flush work?

A baking soda flush will make your blood and urine more alkaline. This drastically reduces the renal elimination of methamphetamine, increasing the odds of a negative drug test. To better their chances, some users pair the baking soda flush with detox drinks to pass drug test.

How long do you need to pass a drug test by taking baking soda?

You’ll need to take the baking soda solution four to five hours before your drug test. Make sure that you pee at least two times before you can collect the urine specimen. The third time urinating will deliver the cleanest sample.

Does a baking soda flush work to remove marijuana?

No. The baking soda flush will increase the pH of your blood and urine. This can help you game a urine methamphetamine drug test, as meth is also alkaline. It is however ineffective to use baking soda on weed as the main THC metabolite is acidic.

How to pass a mouth swab drug test for weed?

A mouth swab drug test can detect cannabinoids for up to 3 days after last use. There are specially formulated products and mouthwash that can help you pass this test even when you have limited time to prepare.

Reviews from social media

Over the years, people who have given the baking soda flush a try have taken to social media to share their experiences. These reviews can be a great way to gauge the effectiveness of using baking soda and water to pass a drug test. We’ve compiled some unbiased reviews from Reddit users.

Puzzleheaded-Art1436 on Reddit says, “I did a tablespoon and a half all at once. I was super hydrated at the time and kept hydrating afterwards. I peed twice after taking the baking soda to clear what was already in my bladder and the third piss after 2 hours was clean.”

SD_Southpaw on Reddit says, “I’ve got news for those that have ignorantly asserted it will not work. I’ve smoked the day of my test all the way up a couple before taking test. Which was right about the time I drank the bomb (2tb 8oz water). Leading up to the test i drink 3-4 20oz bottles of water. I pee 2x after drink bomb. I test using my 3rd piss. Works every time.”

Spamola on Reddit says, “Most likely won’t work. Meth only last around 72 hours in urine, you can make it clean the old fashioned way if you stop now and drink water until Monday.”


In this article, we’ve comprehensively answered the question: How to pass a urine drug test using baking soda. There is compelling evidence that, if done correctly, a baking soda flush can be an effective way of beating a methamphetamine/ amphetamine urine drug test. Note that this method will most likely not work for other drugs.

If you opt for this home remedy, you need to be very careful about the amount of baking soda ingested. Taking just the right amount will make your urine alkaline and your kidneys will prioritize eliminating the baking soda. Meth will remain in your bloodstream and any urine sample collected will have an undetectable amount of drugs.

Consuming too much baking soda will raise the pH of your urine beyond the normal range, a telltale sign that you’ve tampered with the specimen. A sodium bicarbonate overdose can also cause a gastric rupture, high blood pressure, and inhibit normal body functions.

Keep in mind that this method will most likely not work for other drugs. As a last resort, make sure you look into the best defense for a positive drug test.

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