In Finn's nervous awe and stammering narration, Austin finally understood that it was through burning oak and then soaking it in lime solution that they obtained this oak substrate covered with mushrooms, with only two or three poisonous ones.
The lime solution was formed in a cave beneath a cliff by burning the limestone rock inside to create quicklime, which was then mixed with water.
This was one of the few chemical formulas Austin remembered, and the lime produced through this reaction was intended by the Goblins for the expansion of houses.
The fire caused by the previous attack on the Centaur Tribe gave Austin concern. Upon returning, he ordered the Goblins to quickly remodel the village, changing the wooden and straw structures to brick and tile to prevent fires.
Besides bricks and tiles, lime was one of the important building materials used, and Finn surprisingly thought of treating with lime solution.
"Well done. You've done a great job."
