First, she soaked all the tools in boiling water, repeating the process three times until they were completely clean. Then she set up two pots on the stove, each containing four pounds of peanuts. She stirred and roasted them until they turned golden brown and were fully cooked, then poured them directly into the hand-operated oil press machine. With all her might, she turned the crank, using a wooden board to squeeze the peanuts vigorously.
Listening to the sound of the oil flowing from the front container into the plastic barrels, a deep sense of joy spread across Su Yijia's face. Although it was not exactly four pounds for every eight pounds of peanuts pressed, at least two pounds had been successfully extracted.
Su Yijia quickly returned to her original position and continued turning the crank. This time, she used all her strength, pressing twice before barely squeezing out one pound of oil. Any further attempts were fruitless.