Open Source Freeze Dryer Conceptual Design
- About defrost cycle - [1]
Spray Dry vs Freeze Dry
Spray Dry: What do you think of spray dry? Chat concludes:If the goal is civilization-scale dietary improvement Commodity citrus powder is the correct first move. (spray dry, not freeze dry)
https://chatgpt.com/share/6979b705-ad7c-8010-8ef9-38af752dbe53
Freeze Dry: Capex for open source freeze dry for 20 tons per day wet appears to be $4M open source based on $40M industry standard for freeze dry powder, with 6 month payback for open source capex but without PV. PV is around 1MW requirement ($200k capex for PV panels)
So phasing in to full production would make sense.
For Spray Dry: Capex for open source for 20 tons per day wet appears to be 1/10 of freeze dry costBut carrier additive is needed for spray dry - like maltodextrin. https://chatgpt.com/share/6979b705-ad7c-8010-8ef9-38af752dbe53 For which reason freeze dry remains attractive - no additives.
Links
- Open Source Blueberries - [2]