Skoog Tablets: An Open‑Source Decentralized Protein‑Production System for Crisis Environments

Skoog Tablets – Skoog Coastal Life‑Seed (SCLS): A decentralized protein‑production system for crisis environments

DOI: https://zenodo.org/records/19650438  

Languages: Swedish, English, Spanish  

License: CC‑BY 4.0 (fully open source)  

Inventor: Göran Skoog  

Website: https://www.skoogmarine.com  

Overview

Skoog Tablets, also known as Skoog Coastal Life‑Seed (SCLS), is a decentralized, electricity‑free system designed to produce edible protein within approximately 72 hours using seawater, sunlight, and a standard 20‑liter jerrycan.

The system is intended for environments where infrastructure has collapsed, including:

- war zones  

- natural disasters  

- blockades  

- isolated coastal communities  

- refugee camps  

- areas without electricity or logistics  

The design allows people to carry out the entire process independently using materials that are commonly available in coastal regions.

Why this system is significant

The method combines several elements that are not commonly found together in existing food‑production technologies, including:

- direct use of seawater as the growth medium  

- a halophilic tri‑culture (bacterium + microalga + lactic acid bacterium)  

- a three‑tablet sequence with geometric coding  

- a fully electricity‑free process  

- built‑in visual and sensory safety indicators  

This combination enables protein production in situations where conventional food systems and supply chains are non‑functional.

How the system works

1. The container

A standard 20‑liter plastic jerrycan serves as the bioreactor.

2. Input resource

Seawater is used directly as the medium.

3. Energy

The system relies entirely on solar heat and ground insulation.

4. The three tablets

- Day 1 – Round tablet (START‑SEED)  

 Introduces Vibrio natriegens and Dunaliella salina and adjusts salinity.

- Day 2 – Square tablet (GROWTH‑SEED)  

 Adds nutrients (sodium nitrate + sodium acetate) to support biomass growth.

- Day 3 – Triangle tablet (FINISH‑SEED)  

 Adds Tetragenococcus halophilus, initiates fermentation, lowers pH, and flocculates the biomass.

Safety features

- pH indicator (anthocyanin) for visual confirmation  

- Taste barrier (quassin) for sensory warning  

- Thermal final treatment (75 °C, max 5 mm thickness) for uniform heating  

These features support safe use in low‑infrastructure environments.

Yield

A typical batch produces:

- ~40 g dry biomass  

- 20–22 g protein  

- lipids and micronutrients from Dunaliella salina  

Applications

- last‑mile food production  

- emergency response  

- community‑level resilience  

- low‑resource coastal regions  

The system is designed to be used independently by individuals or communities.

Advantages

- no electricity required  

- uses widely available materials  

- low cost  

- portable  

- minimal training needed  

- open‑source documentation  

- scalable in low‑infrastructure settings  

Technical documentation

- Skoog Tablets / SCLS: https://zenodo.org/records/19650438  

- Skoog Buoy:  

https://doi.org/10.5281/zenodo.18483339

Inventor

Göran Skoog  

All technologies released philanthropically as open source  

Website: https://www.skoogmarine.com  

Innovating for a hunger‑free and thirst‑free world.  

Water from air. Ocean as food. No electricity. No brine.  

Always open source.