World Stove

The Beaner is a bi-fuel fan-free stove without temperature control. Created for backpackers as a carbon-negative camping stove, it’s also currently being used in developing countries as a small cookstove. It can be used with dry biomass (pine needles, wood, etc.) or with any alcohol (ethanol, alcohol, vodka, etc.). It is also possible to add waste plant oil, such as sunflower seed oil, jatrovha oil or olive oil, to dry biomass for a 21% increase in energy. Campers need only add a 8oz soda can as a consumable item. Using the Beaner creates biochar, which enriches the soil and sequesters carbon. This means that you can bury your biochar in the soil where you cook and leave it richer than you found it.

This is a low-cost introduction to micro-gasification which allows you to begin experimenting with turning biomass into clean, blue-burning gas.

Compatible with stainless steel pot stand and aluminum flat folding windscreen. For an alternative to the stainless steel pot stand, click here (link) for instructions to build a micro pot stand out of hardware cloth.

Technical Information
Adding fuel: Top fill. Not batch driven, can add fuel while cooking.
Biomass feed rate: 100g = 42 minutes of cook time
Alcohol: 29 ml = 22 minutes of cook time
Weight: 244 g / 8.6 oz
Measurements: 134 mm (height) 51 mm (diameter)
Weight of stainless steel pot stand: 5.7 oz
Weight of windscreen: 0.1 oz

Accessories
Stainless steel pot stand (photo)
Aluminum flat folding wind screen (photo)