Marron glacé that a "marron glacé" is a confit marron that is covered in caramel. The 1767 book "L'agronome, ou dictionnaire portatif du cultivateur" claimed that the best marrons came from the Dauphiné region in southeastern France, and contained instructions for preparing marron glacés. Chestnuts are covered with a membrane, known as a pellicle or episperm, which closely adheres to the fruit's flesh and must be removed because of its astringency. Marron nuts have a pellicle which is "superficially attached to the nut", making it easily removable from the fruit. Some chestnuts have two cotyledons usually separated with deep grooves penetrating nearly
Loretta Marron instead of providing improved accountability, these changes may simply confer an appearance of respectability and professionalism which is not warranted: "Once they are regulated, that legitimises them, but it comes with a responsibility to consumers; they can't have it both ways," she says. Marron is particularly critical of universities which teach courses in unproven treatments, some of which have lecturers who promote their own practices and products in the process. In 2011, she wrote to the Federal Health Minister outlining the seriousness of the problem, which she said "is a form of child abuse", calling for universities to stop teaching