Poisonists can now use kegs. To fill a keg, simply EXTRACT creature INTO
keg.

Note: kegs always fill vials with 50 sips, no matter how skilled was the
person who filled the keg, and probing a keg always shows only full
vials it can fill. However, poisonists of exceptional skill, and/or
poisonists using artifact gloves, can get more than 50 sips out of a
creature. These extra sips are not lost! A transcendant poisonist,
getting 60 sips per extraction, will fill a keg with fewer creatures
than one who only gets 50 sips per extraction. For example, a
transcendant poisonist who extracts five creatures into a keg will find
it has enough for six vials (5 * 60 = 300, enough for 6 vials of 50 sips
each).

Penned by My hand on the 3rd of Juliary, in the year 183 CE.