Sim, não é recomendado.
Aqui está uma descrição do encanto do Engorgement no Livro dos Feitiços de Miranda Goshawk:
These straightforward but surprisingly dangerous charms cause certain things to swell or shrink. You will be learning both charms together, so that you can always undo an over-enthusiastic cast. There is thus no excuse for having accidentally shrunk your homework down to microscopic size or for allowing a giant toad to rampage through your school’s flower gardens.
Embora não haja casos de objetos explodindo sendo ingurgitados demais, há um incidente semelhante:
A tiny boy no older than two was crouched outside a large pyramid-shaped tent, holding a wand and poking happily at a slug in the grass, which was swelling slowly to the size of a salami. As they drew level with him, his mother came hurrying out of the tent.
"How many times, Kevin? You don't - touch - Daddy's - wand - yecchh!"
She had trodden on the giant slug, which burst. Her scolding carried after them on the still air, mingling with the little boy's yells "You bust slug! You bust slug!"
Harry Potter and the Goblet of Fire, Barty and Crouch
É provável que isso funcione da mesma maneira que as células animais. Quando muita água entra na célula animal por osmose, ela incha e eventualmente explode.
Aqui está um vídeo de suas adoráveis células vermelhas do sangue explodindo: