Etrog is a form of citrus and commonly used in Israeli gin. Buddha’s hand is in its family (Buddha’s hand doesn’t have the traditional lemon or orange sphere but instead looks like a twisted hand with fingers). Etrog’s shape is in the middle of this, looking more like a deformed lemon. It has a very thick skin to it, which allows for more oil to be released. It is a muted citrus taste as it is not sour or sweet. It is more used as a soft, subtle citrus botanical when most other citrus options are too strong.