That's the way to do it

African grandmothers chew maize seeds and spit the pulp into a bucket which is added to an oildrum filled with water,maize meal, milk and sugar.
In the warm African climate soon 55 gallons of highly potent foaming Chibuku beer will magically appear.
Often entrepreneurs tour the villages buying up this home brew. They light a fire under the drum and distill Kachasu liquor using an assortment of drainpipes and irrigation equipment.
However although extremely potent, it is usually highly toxic.
No problem to drunks [who will drink anything] but possibly ideal for the infernal combustion engine.

Time Traveller