In simple terms, it was an .
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Before the equellum, alchemists lost volatile components (alcohol, essential oils, ammonia) during prolonged heating. The equellum solved three major problems: In simple terms, it was an
| Feature | Equellum | Modern Reflux Condenser | | :--- | :--- | :--- | | Cooling | Passive (air-cooled) | Active (water-jacketed) | | Material | Ceramic, earthenware, or glass | Borosilicate glass | | Return Path | Central funnel | Outer jacket drips back | | Era | 15th–18th centuries | 19th century–present | In simple terms
