Why does fizzy juice contain acid

Phosphoric acid produces sharp flavors in the finished beverage. This acid also acts as an anti-fungal and antibacterial by slowing the growth of molds and bacteria. Without phosphoric acid, molds and bacteria would rapidly multiply within the beverage from the sugar content. The December issue of "Nutrition, Metabolism and Cardiovascular Diseases" reports that carbonated beverages do play a minor role in dental erosion 3. The sugars in these beverages, however, can directly damage your teeth by causing plaque that leads to cavities, which may be more harmful than the carbonation.

Jessica Jacobs is a registered dietitian and professional writer, contributing to "Fitness Magazine" since She received a B. Monitor the health of your community here. More Articles. Nutrition, Metabolism and Cardiovascular Disease: Carbonated Beverages and Gastrointestinal System: Between Myth and Reality Nutrition, Metabolism and Cardiovascular Disease: Carbonated Beverages and Gastrointestinal System: Between Myth and Reality The information contained on this site is for informational purposes only, and should not be used as a substitute for the advice of a professional health care provider.

The really big difference between dissolving a solid in a liquid, and a gas in a liquid, is that generally the solid will stay dissolved, whereas generally if you remove the high pressure that you used to force the gas into the liquid, the gas will bubble out again. Note: this is only for highly pressurised situations, all liquids open to the air will have some gas dissolved in them, the small amount of oxygen dissolved in sea water is how fish breathe!

The stages of both solid and gas dissolving in liquid are shown in Figure 1. Figure 1. The stages of dissolution for solids and gases in liquid. Lets look at Figure 1. Starting with a solid dissolving in a liquid, we can imagine a solid tablet being added to a liquid as seen in a. Moving now to look at gas dissolving in a liquid we find a slightly different story.

In d we have gas being injected into a sealed container of liquid. Initially the gas will bubble to the top and enter the space at the top of the container but as the pressure rises the gas will also dissolve in the liquid until we reach e , where the gas is dissolved throughout.

You can imagine e as a closed can of fizzy juice. If the pressure is released by opening the can, as in f , the liquid will start losing the gas to the air outside. The noise you hear when you open the can is the pressurised gas in the top of the can escaping.

So now we know why our carbonated drinks fizz, but the answer to our ice cube question depends on how quickly they fizz. The faster the bubbles can form, the faster the fizz is produced and the gas escapes. On a side note, this is the reason that shaking up a can causes it to overflow if opened immediately: by shaking the can you add a lot of energy to the molecules inside and cause them to move around faster, this means that the gas molecules meet each other faster and quickly escape in a massive fizz if the pressure is released.

The bubbles rising through liquid in the mouth also create a pleasant, tingly sensation on the tongue. As long as there are no added sugars, sparkling water is just as healthy as still water.

They can make you feel gassy or bloated, so you may want to avoid them if you have gastrointestinal issues. It Can Cause Tooth Decay When you drink sweetened, carbonated soda, the sugar remains in your mouth, promoting the processes that lead to tooth decay. The acid in these carbonated drinks further increase the likelihood of developing cavities, because these chemicals also slowly erode the enamel of your teeth.

Carbonated beverage consumption has been linked with diabetes, hypertension, and kidney stones, all risk factors for chronic kidney disease. Cola beverages, in particular, contain phosphoric acid and have been associated with urinary changes that promote kidney stones. Carbonated beverages are produced by dissolving carbon dioxide in liquid, typically under high pressure.

Enzymes in the mouth convert the carbon dioxide into carbonic acid. Can carbonated water make you gain weight? Malic acid is present in some fruits and their juices and makers of noncarbonated drinks in some cases add amounts of it for flavor and as a preservative. For comparable reasons, some fruit drinks contain fumaric acid as an additive. The pH scale is logarithmic; no is the most acidic and 7. Pure water has a pH of 7. Each round number on the scale represents 10 times the quantity of level of acidity of the previous number.

Soda pops measure about 2. Battery acid by contrast has a pH of about 1. The results of acidity in sodas may be more harmful to teeth than the sugar they consist of. Industrial users of phosphoric acid use it to steel parts in order to remove them to bare metal before being painted.

The Academy of General Dentistry cautions that the acid levels in soft drinks can cause damage to teeth and advises that their intake be restricted, especially for children.

Carbonic Acid Manufacturers include carbonation to water by liquifying pressurized co2 gas in the water. Citric Acid Citric acid is a mild acid frequently connected with fruits and vegetables.