Dd is 8 month and blw. Starting to get the hang of it now. How long do you leave them with food before you clean up or remove? Don't want to rush dd in anyway but she was still happily chewing her toast for 40 mins or so this morning. Everytime i thought she had finished i would go to clear the left over mulch or crumbs but she'd start cramming it in her mouth again if i go to take it away?!