Raisins are a type of grape that has been dried for around three weeks. Grapes darken as they dry, which gives raisins their dark brown color food.
A range of grape varieties is used to make raisins. The size, taste and color depend on the type of grape used.
In the US, are typically made from the Thompson Seedless variety UFABET
However, in Australia, made exclusively from larger grape varieties. Including Muscat, Lexia and Waltham Cross, and are often larger than sultanas for this reason.
Are dark in color, have a soft texture, a sweet flavor and are typically larger than sultanas and currants.

Sultanas.
Sultanas are made from green seedless grapes, particularly the Thompson Seedless variety.
Unlike raisins, sultanas are typically coated in an oil-based solution prior to drying to speed up the process. For this reason, they are often lighter in color than and currants.
In Australia, some sultanas are made without the drying solution. These grapes take longer to dry — up to three weeks and are dark brown in color. They are often referred to as “natural” sultanas.
In the US, sultanas are referred to as “golden” or “sultana raisins.” These grapes are treated with a preservative called sulfur dioxide to retain the lighter color of the grape.
Sultanas are typically smaller than and are sweeter, juicer and lighter in color than both raisins and currants.