Final answer:
Solids recrystallized from organic solvents should not be oven-dried because the high temperatures may cause the crystals to decompose, which can damage their purity and structure.
Step-by-step explanation:
Solids recrystallized from organic solvents should not be oven-dried because the crystals may decompose at high temperatures. This decomposition can occur because the elevated temperatures in an oven can cause sensitive compounds to break down or react, rather than merely lose the solvent through evaporation. Moreover, maintaining the integrity of the crystal structure is critical as the process of recrystallization is used to purify substances by exploiting the fact that the solubility of most compounds increases with temperature. When a solution is cooled down, the solute is less soluble and begins to precipitate, forming pure crystals.