I have a Bugaboo Bee and a Maclaren Volo, and both have stains in the hood folds where I keep snacks.
I think I can remove the Volo hood completely so that shouldn't be a problem to clean.
But what about the Bee? It's khaki and the stains are quite visible. I'm getting it ready for DS2 who is due in July - when the Bee's in its reclined newborn position the hood is completely on show. Don't want people thinking I'm a total scummer...