Tosefta על עבודה זרה 5:1

The one who purchases utensils from an idolator: things that have not been used, he immerses them and they are ritually pure. Things that have been used, like cups or flasks, he rinses them in cold [water]. Like pitchers, kettles, pans, or [another kind of] kettles, he rinses them in boiling [water]. Like knives, spits, or grills, he heats them to white-hot and they are ritually pure. And all that have been used, if he had scalded [in boiling water] or immersed or heated [to white-hot], they are permitted.

The one whose wine-presses and olive-presses were unclean and he wanted to make them clean, the boards and the posts [supporting the beams] and the troughs that he dries are clean. The work of wicker and of hemp he must dry. Shavings and reed-grass, he must let them be. And how long should they be left? Twelve months. Rabban Shimon ben Gamliel says, from one wine pressing to the next or from one olive pressing to the next. Rabbi Yosei says, the one who wants to clean them should mix them immediately with hot water or scald them in olive water. Rabbi Shimon ben Gamliel says in the name of Rabbi Yosei, he puts them in a river whose water flow the whole spring or a spout from which water pours. Just as he dries them for cleanness, thus does he dry [on account of] libation wine.