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What is Citrus Caviar? Health Benefits Of Australian Finger Limes, Nutrition Facts and How to Use them

Updated on May 12, 2013
Citrus Caviar ~ Finger Limes
Citrus Caviar ~ Finger Limes

What is Citrus Caviar?

A finger lime, also known as 'citrus caviar', is one of six species of citrus fruit native to Australia.

Now also grown in California, finger limes are becoming more widely known and can be found at local markets and in many popular restaurants.

Whilst it is a proud member of the citrus family, alongside the lemon, lime, kumquot, limequat and pomelo, they are in fact very different. Despite their look and formation, they are not genetically modified.

Features of Citrus Caviar Finger Lime

The finger lime differs significantly in many ways to its 'cousins'.

A finger lime is approximately three inches in length and resembles a pickle or gherkin due to its elongated shape. Its outer covering, or skin, is thin, slightly rough and scaly, and can vary in color depending on the variety. Typically they are a dark purple, or dark green color however are known to also to be more along the red scale.

As per its name, the inner flesh of a finger lime closely resembles the size and texture of caviar. Each little bubble of juice is round and firm and delicately yet excitedly pops in your mouth releasing an incredible flavor.

How to store a Finger Lime?

When ripe, store a finger lime in the refrigerator.

It is the only fruit from the citrus family that is recommended to be stored in the refrigerator, without the chance of losing its quality of flavor and texture.

Consume within a few days.

Nutrients of a Finger Lime

The flesh of a finger lime not only looks amazing, but it is also highly nutritional, and provides us with Folate, Potassium and Vitamin C.

Varieties of Finger Limes

There are four varieties of finger limes available: Limeburst Green, Limeburst Burgundy, Limeburst Pink and Limeburst Black and as their names suggest, their colors vary greatly.

Depending on the variety, the colour of the flesh, or caviar, can differ and therefore provide a very appealing addition to a dessert or savory dish.

It is often hard to sell what the inner flesh color will be. If the outer is purple, it is likely that the caviar will have a pink tinge, however some will have a red appeal. Some will be green. Maybe that is part of the excitement to this fruit.

What does a Finger Lime taste like?

The round and firm caviar-like bubbles of juice within a finger lime release a unique flavor that can only be described as a mixture of lemon and lime. It is tart on the tongue and can be said to have an acquired taste. The skin of a finger lime is not to be eaten however has other uses.

Essential Oils

You can make an aromatic oil out of the rind of a finger lime to be used in cleaning products, perfumes or aromatherapy.

How to use a Finger Lime

There are many varied ways to prepare and indulge yourself in a finger lime, or citrus caviar.

Given their size, being only three inches in length, each finger lime only contains a small quantity of caviar, or bubbles of juice. The best way to extract them, to retain as much caviar in tact as possible, is to slice the fruit in half, lengthwise and gently scoop the caviar out.

You can also cut the finger lime widthwise, and then gently apply pressure to pop out each bubble, however whilst they are firm, care must be taken so they do not pop prematurely.

Once you have extracted the gorgeous bubbles of juice, now what?

As a member of the citrus family, and due to its tart flavor, it is of personal opinion whether you eat this fruit fresh. It is recommended to at least try it this way once so you know what you are working with. The sensation of the bubbles of juice bursting in your mouth, exactly like caviar does, is incredible.

Recommendation on how to use this fruit in a recipe are generally to match it with something sweet, to balance out the tart flavor, however more and more restaurants are choosing to add finger limes to their fish recipes and even as an accompanyment to fresh oysters, grilled salmon and even sushi.

Finger limes are also more commonly now used to make jams, and used as a garnish in salads to add a uniqueness to a dish. Given its close similarity to a lemon or lime in flavor, when squeezed, its juice can be used as a substitute in recipes, freshly prepared juices or dressings.

Unique Citrus Fruits

If you are keen to learn about more unique fruits from the citrus family, read all about the kumquat, pomelo, limequat and buddah fingers.

Next time you see citrus caviar, or finger limes mentioned on a menu, give it a try. If you see them for sale at your local market or grocery, pick one up and experience it for yourself. There is almost no end to the possibilities of uses and the explosive burst of flavor provides a texture like no other.

All Hubs are Original Material by 'Work At Home Mums' ©


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    • profile image


      21 months ago

      So excited that my son got seeds and we’re growing some here in California. Praying they grow healthy!

    • Pamela99 profile image

      Pamela Oglesby 

      7 years ago from Sunny Florida

      I had never heard of this fruit before, so this was an interesting article to me. Thanks for the information.

    • gmwilliams profile image

      Grace Marguerite Williams 

      7 years ago from the Greatest City In The World-New York City, New York

      This was a very interesting article. I did not know about citrus caviar/finger limes. Learn something new each day. Thank you for this information.


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