There is a distinction between candied fruit, crystallized fruit (aka frosted fruit), and glazed fruit (aka glacé fruit)
Candied fruit is fruit that has been candied. Crystallized fruit is fruit frosted with caster sugar. Glazed fruit is fruit that has been coated or shipped in a sugar syrup.
The term "candied fruit" is often used casually as a catch-all for all three.
The great candied fruits are figs, mandarin oranges, melons, pears, plums and pineapple. The French call these candied fruits the "fruits nobles". The bulk of the industry, however, is candied cherries.
In making candied fruit, it is better to use fruit that is just ripe. Dried fruit can also be used. Starting from dried fruit takes 2/3 less time, but it does need to be rehydrated first. The candying process can take 6 to 14 days, or even several months. You put whole small fruits, or chopped larger fruits, into a sugar syrup, and gradually day by day increase the strength of the sugar syrup. The sugar syrup pulls the water out of the cells in the fruit, because sugar attracts water, and the water that leaves the cells gets replaced by the sugar. The process must be gradual or the fruit will shrivel and toughen.
Limes cannot be candied successfully at home; an enzyme in their rind will darken them and break them down. Commercially, though, it can be done, and both candied lime slices and candied lime peel (or zest) are available.
Candied fruit is sold in tubs and sealed boxes, mixed or as separate fruits.
Should you have fruit frosted in sugar (crystallized fruit) that you want to use in a recipe that calls for plain candied fruit, you could rinse the sugar off. It seems like a bite of a waste, however, and it may be better just to purchase plain candied fruit.
Literature & Lore
The fruit is covered with a diluted hot syrup, which is gradually increased in sugar content on a daily basis until it becomes a heavy syrup. In this way, the fruit is slowly impregnated with sugar which acts as a preservative. It is recommended that glucose or dextrose is used in place of part of the sugar, particularly when preparing candied peel.
It is essential that the process of slowly increasing the concentration of sugar in the syrup is followed as this allows the water which is present in the fruit to diffuse out slowly as the sugar penetrates it. Unless the process is gradual the fruit will become shrivelled in appearance and tough in texture." ((Jones, Bridget, Ed. Home Preservation of Fruits and Vegetables. London: AFRC Institute of Food Research. 1989. 14th edition, revised. Page 130.))
Candied FruitCandied Angelica; Candied Apricots; Candied Cherries; Candied Fruit; Candied Peel; Crystallized finish for fruit; Glacé finish for fruit; Maraschino Cherries
Please share this information with your friends. They may love it.