EastScape Wikibuilt from the game itself

Foreman's grease

“Rendered down from a foreman's tally and a bonegourd. Rub it on the hammer, not on you. While it lasts, a Kindled Diamond costs 1% less gem dust. For 10 minutes outside: a Kindled Diamond at the Gem Bench costs 1% less gem dust (10% at most).”

How to make it

MaterialsSkillWhereMakesXP
Large flask
Foreman's tally
Bonegourd
Alchemy 76a cauldron1420

What it does

Drink it: for 10 minutes outside, a Kindled Diamond at the Gem Bench costs 1% less gem dust (10% at most). One drink at a time.