Automatic Eggplant Calyx Removal Machine

The calyx is the fruit's original flower base — the green, sometimes spiny cap that stays attached at the stem end after harvest. It is not eaten and is removed, along with the stem itself, before slicing, dicing, freezing, canning, pickling or roasting.

"Calyx removal" is the botanically precise term for what is more commonly called stem cutting, topping or head cutting elsewhere in the industry. The physical operation is the same regardless of which term is used.

The calyx and stem are firmer and more fibrous than the fruit flesh, so leaving any of it attached is a visible quality defect in a finished product and, depending on the process, can affect downstream handling. Removing too much in the other direction reduces usable yield. Both are reasons the cut position is calculated per product rather than fixed.

A camera-based inspection step locates each eggplant and identifies the calyx and stem area before the cut position is calculated. The cutting assembly then removes it in a controlled cycle timed to the product's position on the conveyor.

No accuracy percentage is published for this process because it depends on product condition, lighting, line speed and configuration — variables DOKTEK FoodTech evaluates during application engineering rather than generalizes on a website.

This is the same operation described as stem cutting or topping elsewhere on this site — see the eggplant stem cutting machine and eggplant topping machine pages — using the botanically correct name for the part being removed. DOKTEK does not sell a separate calyx-specific machine.

Confirm the cut position and remaining collar on real product samples, the yield loss you are prepared to accept, and how the machine's infeed and discharge fit your existing line. DOKTEK FoodTech does not publish a generic capacity, accuracy or power figure; each is confirmed for the specific product and configuration.