Idk man... smells good but doenst look that great. Its mixed bag I would say.
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Set up cost (fixed costs)
-Lamp: 40€
-Timer: 3,5€
-Pot: 4€
-Total fixed costs: 47,5€
Given 5 years (or 15 grows) usage time translates to around 3,17€ per grow in materials.
Variable costs:
-Seeds: 6,33€
-Soil: 6€
-Fertilizer: 3,50€
-Power: 20,22€
-Total variable costs: 36,05€
-Total costs per grow: 39,22€