The PlasterSprouter

How It WorksThis sprouter uses a block of plaster as a porous water reservoir. Plaster slowly releases moisture, keeping your seeds evenly hydrated without soaking them. The textured mold surface ensures good adhesion for root development and increases the contact area for better germination. The grey area of the sprouter, located just below the cap and not filled with plaster, serves as a dedicated water tank. It allows you to easily refill the system and ensures a constant supply of moisture to the plaster block through capillary action.The sprouter is designed to make the most of the build volume of the Bambu Lab A1 mini. It requires two separate prints, both optimized for fast and clean printing while minimizing plastic use (manual supports are placed strategically to achieve the best quality-to-material efficiency ratio). What You’ll NeedMaterials:260 g of Plaster of Paris (or any additive-free plaster)Liquid soap (clear and bubble-free if possible)WaterSeeds of your choice Tools: