a basket of papaya

You often don't think about which one is the sweetest on Earth when you think of fruits. With so many fruit varieties, it can become challenging to pick one fruit over another in terms of sweetness.

However, the sweetness of fruit can be determined by using the Brix scale to measure fructose levels in fruits.

According to the Guinness Book of World Records, the sweetest fruit on Earth is the Carabao Mango.

However, the most sugar-dense fruit in the world is a Fig which holds 8 grams of sugar per serving.

The highest-ranking fruit on the Brix scale is the Papaya, which means it's the sweetest at its peak ripeness.

So, what does this mean in terms of being the sweetest fruit on Earth? With so much confusion surrounding fruit sweetness, we'll have to take a deeper dive into how each of these fruits is measured.

Below, we'll give you a proper breakdown of which fruit is determined to be the sweetest.

What Are Some of The World's Sweetest Fruits?

The sweetest fruit in terms of sweetness and flavor is mangoes, particularly the Carabao Mango.

The Carabao Mango is a mango native to the Philippines and was named the sweetest fruit in the world by the Gunness Book of World Records in 1995.

It's one of the most cultivated mangos in the Philippines and is known for its sweet flesh and exotic taste.

On the Brix scale, a mango at its non-ripe stage is a 6, while at the peak of the season, a mango is a 14.

The Brix scale can go up to 100, but for fresh fruits, the maximum is generally at a point scale of 25.

So, while the Carabao mango is exceptionally sweet, it only hits a 14 on the Brix scale.

However, mangos aren't the only sweet fruit. If we use a different scale compared to taste, there are other fruits that are just as sweet. That includes dates and papayas.

A date is considered the sweetest fruit if you use sugar density. On the other hand, papayas are the sweetest fruit if you use the Brix scale.

That being said, there are plenty of factors that go into determining the sweetness of the fruits.

Are All Mangos Sweet?

asian girl eating mango

It should be noted that a regular mango that you grab at the supermarket will not be as sweet as a Carabao Mango.

There are many varieties of mangos. Each of them has a different level of glucose and fructose, which impacts how sweet the fruit tastes.

Some other types of mango varieties that exist include:

  • Alphonso

  • Keitt

  • Tommy Atkins

  • Palmer

  • Neelam

  • Chaunsa

  • Haden 

  • Kent

  • Bombay

  • Sunset

  • Etc. 

Each variety of mango is also ripe in a different type of year. Depending on what region it's being grown, the mango will have to be "in season" to taste its sweetest.

So, you can't expect every mango to be as sweet as the world's sweetest mango.

If you really want to experience the sweetest mango, you will need to head to the Philippines in late May or early July.

Then, you'll be able to taste freshly picked Carabao Mangoes when they are in season. The taste will be incomparable to other mangoes you can find around the world.

What Are the Sweetest Fruits on the Brix Scale?

To better understand the world's sweetest fruits, we'll need to take a look at the Brix scale. Depending on the ripeness of the fruit, it ranks higher or lower on the scale.

So, keep this in mind before assuming a fruit is very sweet, as fruits take time to ripen.

Below, here are the highest-ranking fruits on the Brix scale:

  • Figs - 12 / 16 / 20

  • Grapes - 12 / 16 / 20

  • Kiwi - 12 / 16 / 20

  • Lychee - 14 / 17 / 20

  • Oranges - 10 / 16 / 20

  • Papaya - 10 / 18 / 22

  • Pineapples - 14 / 20 / 22

As you can see, the highest recorded fruit on the Brix scale is Papaya at its peak ripeness. Papaya is a fruit that is native to tropical America and originates from southern Mexico and Central America.

The fruit's texture is soft and almost avocado-like. Still, it tastes like a cantaloupe or mango with a slight sweetness.

How Does the Brix Scale Work?

Brix Scale

The Brix refractometer is a small device that can measure liquid for liquids, foods, and beverages. However, this nifty device can also be used on fruit and help measure the amount of sugar.

So, the Brix scale measures the number of grams of pure cane sugar (sucrose) contained in 100 mL of water.

How it works is when light enters a liquid at an angle, it will change the direction it is going, and this is called a refraction.

The light will then refract more when suspended solids are located throughout the liquid. So, the refraction will measure the concentration of dissolved sugars.

The result is a sucrose density that can be used on fruits, vegetables, juices, drinks, wine, beer, etc.

This particular case will be used on fruits to determine the amount of sucrose in grams per 100 mL volume. The higher the number on the scale, the more sucrose is in the amount of liquid.

Sweetness Based on Taste

The taste of a fruit's sweetness is entirely different from person to person. There are also so many factors that go into the sweetness of fruit by taste. The world's sweetest tasting fruit is mango, but other fruits rank very high on how sweet they taste.

Below, here are a few fruits that are said to taste the sweetest:

  • Pears 

  • Dates 

  • Red grapes 

  • Pineapple 

  • Apples

  • Wild blueberries

  • Guavas 

  • Etc. 

Factors that influence the sweetness of a fruit include if the fruit is in season, what type of variety the fruit is, and how ripe it is, depending on when it was picked. So, it's hard to say that one fruit will be as sweet as another. In some countries, certain farms focus on producing high-quality fruits that are super sweet.

Sugar Density & Fruit

eating fruits

Aside from taste, fruits also have a sugar density. This means that the amount of sugar in the fruit is exceptionally high compared to other fruits. The sugar density in the fruit can somewhat determine the sweetness of taste.

Fruits that have a high sugar density include:

  • Litchis

  • Passion fruit 

  • Pomegranates

  • Mangoes

  • Cherries

  • Oranges

  • Kiwis 

  • Grapes

  • Guavas

  • Bananas

  • Etc.

Sugar density is determined by devising the mass of the sugar water by its volume. That will give you the density, and this is used to determine how "sweet" a fruit is in terms of density.

Conclusion

eating papaya

As you can see, the sweetest fruit in the world tends to be mangoes, followed by dates with a high sugar density.

The other highly sweet fruit is Papaya, which has a very high rating on the Brix scale. So, these are the sweetest fruits on the planet.

Of course, the sweetest fruit can change, as fruits tend to taste different to each person.

That's why it's essential to use other tests such as the Brix scale or sugar density to determine if a fruit is the sweetest in the world.