Gaz is a kind of traditional Iranian confectionary that produce from the processing of Sugar, Glucose Syrup, Rose Water, natural Manna, Albumen and different Nuts specially Pistachio.
Over 100 years Gaz has been produced as a commercial product and presented as a famous Isfahan souvenir to Iranians and the world. Gaz is formed by a sting process of some insects with the scientific name of psylla csylla-laarinus on the juicy stem of shrubs called, Alhagi pseudoalhagi (papilianaceae), Astragalus adscendens (papilianaceae), the name Gaz, the root of word sting in Persian language, has been selected as the name for this product.
Gaz is a kind of confectionary that doesn't use flour, starch or oil in its compound and formulation. Because there is no use of chemical preservatives it can be maintained for 9 months. Using natural flavor such as rose water, it has a pleasant flavor. Indeed Gaz is a collection of natural and nutritional materials.
Once collected from the mountains, the "gaz" of Khunsar is brought into town and placed into very large copper vessels which contain the remaining ingredients of egg white, pistachio or almond kernels, and rose water. The raw mixture is ...see more then beaten over heat until it reaches the desired consistency.
Traditionally gaz-nougat is handmade and fashioned into individual round pieces of about 2–3 inches in diameter and half an inch in thickness- packed into a wooden box and covered with plain flour to keep the pieces from sticking to one another. They may be cut into bite-sized pieces, but are more often sold in larger sizes. Gaz in flour is called "gaz-e-ardi"'.
In modern times and with the advent of automated machines capable of mixing, cutting and wrapping individual bite-sized pieces of gaz, production has increased to commercial levels.