- IMG 20200205 134837
- IMG 20200204 192040
- IMG 20200205 133518
- SCOBY - alternatives Leder
- IMG 20200205 134538
- IMG 20200205 133608
- IMG 20200204 192051
- Filtrations-Station
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- DIY 3D printed hand-powered paperfuge
- IMG 20200107 215132
- Mikroskopie-Bakterienfluss
- IMG 20200205 134945
- visiting Kilobaser
- SCOBY waschen