Skandapurana 5.25.15

5.25.15

sa tvaṃ vāṃchasi cecchuddhimagnivarṇaṃ ghṛtaṃ piba ..
yāvanmātrā surā pītā tāvanmātraṃ viśuddhaye .. 15 ..

So, if you desire purification, drink fire-hot ghee; / for purification, drink only as much wine as you have drunk.”