Iranian pistachios are named according to their shapes. Variety and pistachio sizes are two main factors affecting pistachio price. Ounce is the international agreed unit of measuring pistachio sizes. The number of pistachios-in-shell in one ounce is the criteria for pistachio sizes.There are various sizes, including:
18/20, 20/22, 22/24, 24/26, 26/28, 28/30, 30/32, 32/34,etc.
As an example, pistachio size 18/20 indicates that there are 18 to 20 pistachio nuts in one ounce.
The less number of pistachios in an ounce, the bigger are the nuts.
In order to find the pistachio size, please follow these steps:
It is recommended to measure 5 ounces of pistachios in order to get more accurate result.
For example If the result is 28 groups and 4 nuts, the size is 28-30.