If you're using charcoal, I prefer to use a wood lump charcoal.

如果你使用木炭，我更偏爱木块炭。

[Mike] So rather than burning dangerous solid fuels, Mukuru Clean Stoves are used to process biomass made from charcoal, wood and sugarcane.

因此，木库鲁清洁炉灶不是燃烧危险的固体燃料，而是用来加工由木炭、木材和甘蔗制成的生物质。