}
parentRobotDriver.usedIngredients().addIfNotPresent(aIngredient);
}
}
// add the Water at the beginning of the List of usedIngredients.
Ingredient water = new Ingredient(parentRobotDriver.thePlate().waterVolume());
parentRobotDriver.usedIngredients().add(0, water);
// if OK
parentRobotDriver.getContentPane().removeAll();
parentRobotDriver.pack();
parentRobotDriver.repaint();