HomeBiogas is a biogas company based in Beit Yanai, Israel. The company produces and sells anaerobic digesters, i.e. devices that convert organic waste into methane and liquid fertilizer.
The HomeBiogas system produces biogas by anaerobic digestion of organic matter, i.e. food, meat and animal waste. The machine works without electricity.

HomeBiogas can take up to six liters of food waste or 15 liters of animal waste per day. Each kilo can produce 200 liters of biogas, that's enough for one hour of cooking. Processed waste can also be used as a fertilizer rich in many microelements.

Annually, every HomeBiogas system can eliminate up to one ton of organic waste and six tons of carbon dioxide, and by the way eliminate the bills for gas used for cooking.
 

More: https://www.homebiogas.com/