Inmates can produce illegal substances using which ingredients?

• A. Salt and pepper
• B. Water and sugar
• C. Flour and water
• D. Yeast, sugar, and fruit

Answer: (D)

Fermentation to produce alcohol relies on yeast converting sugars into ethanol. The best combination for this is yeast, sugar, and fruit because it provides the necessary yeast as the biological agent, a rich source of fermentable sugars, and moisture and nutrients from the fruit to support the process. Fruit gives readily available sugars and helps create the right environment for fermentation, while the yeast starts the conversion of those sugars into alcohol.

Salt and pepper don’t contribute to fermentation or provide yeast or fermentable sugar. Water and sugar contain the substrate and moisture, but without yeast the fermentation won’t initiate reliably. Flour and water lack a ready supply of fermentable sugars and, without added yeast or enzymatic breakdown of starch, are not as conducive to producing alcohol in a straightforward, readily available way.