Given the enormous marrow (i.e. overgrown courgette) I discovered earlier, I thought I'd have a go at marrow rum. So I had a quick google and have hollowed out my marrow, poked a couple of holes through the end with a skewer, packed it with brown sugar (and a pinch of fast acting yeast, for insurance), put it in a muslin bag and stood it over a jug. This was about five hours ago and I've already got over half a pint of liquid in the jug and all the sugar has disappeared. Is that normal? Will it now ferment in the jug? I had assumed it would ferment in the marrow first and then once the flesh had broken down a bit, it would drip through. Should I have waited before poking my holes (they probably went all the way through the flesh too?).
And how do you keep fruit flies and wasps out of this arrangement? I know the fruit flies can oxidise the alcohol hence the normal need for air traps when fermenting, but can't work out how to seal this arrangement.
H