In reply to Dododir Thunderborn (msg # 241):
https://viajon.net/pf/crafting/
https://www.d20pfsrd.com/feats...ts/master-alchemist/ 28 hours? /10 = 2.8 hours.
Supposedly Spontanous Alchemy alternate rules are good too, particularly for lower level games, but I've never really looked at it. The craft system isn't perfect but it's a rough approximation, true alchemists get swift alchemy which helps as well, but Theo is a dabbler in alchemy.
Theoretically you should be able to make so many batches of anything you produce alchemically, supplies willing, at roughly the same time. so it might take 3 days, but you could be making 12 at a time.
There are ways to shorten this, but they involve inflating the skill check even more. Theo can't even hit dc 20 with take 10 here, as he needs a roll of 11 to produce it.