Value system for farming products
We have to give products made from base items a value, depending on production steps = complexity, energy need.

Formula
Production steps = 1 * nr of steps (≥2)
Energy units = 1 * number of units needed
Formula: value = production steps * energy units / 3
As starter: 1 value unit = 1 Minegeld. We can adapt the value then with the divider at the end, for now = 2.
Examples
Tofu: 11 production steps (2x water bottle = 6), 5 energy units (glass bottle = 2). Formula = (2*3 + 5) * 5 = 55/3 = 18
Citrus juice: {sand >> water bottle [3|1]}, {citrus fruit + water > citrus mash [1|0]}, {citrus mash > citrus juice [1|1]} = 5*2/3 = 3
Bread: {Wheat > flour [1|1]}, {sand >> water bottle [3|1]}, {flour + water + salt > dough [1|0]}, {dough > bread [1|1]} = 6*3/3 = 6