Definition: Soak (verb and noun) refers to a set period of time during a firing in which the kiln is kept at a specific temperature. Generally, soaking is done at the very end of a firing for a half hour to an hour and a half. Soaking effects glazes and can substantially change glaze characteristics.
According to the firing schedule, we should soak the kiln at cone 9 for half an hour. (verb)
Give the kiln a good hour soak at cone 10 before shutting off the burners. (noun)