Here's the text, I'll insert the pictures shortly:
10% pump and rub as from the link Wheels posted. I am using the second recipe, the cure # 1 and saltpetre combination.
This is a two stage process so for my convenience I split it over two days. There is no reason not to do the second stage immediately after the first. You can make all the cure up together and split it into that which will go into the brine and that which will dry rub, but I prefer to make them up separately so I am completely sure there is no separation of the individual components between the two sets.
My boned and rolled shoulder weighs 3.73 kilos so for a 10% pump I need 373 g brine:
So I'll make up 400ml:
71.4g Salt
38.8g Sugar
0.78g Saltpetre
6.6g Cure # 1
Accurate scales capable of measuring 0.1g are essential.
Because the joint is boned and rolled, inevitably some of the brine will enter the cavity, so I inject it through its shrink wrap so as to keep as much brine within the meat as possible. I insert the needle close to the centre of the meat and pump as I withdraw the needle slowly, leaving a trail of brine behind it within the meat.
If the meat is thin enough you can insert the needle almost to the far side and do the same thing, injecting as you withdraw the needle. To prevent leakage I go in from the top and sides only. With a naked piece of meat you can do it all over.
This needle has the hole to one side so doesn't easily clog
I then leave the meat like this until the next day in the fridge to give the brine a head start before unwrapping it and potentially allowing some brine to escape from the central cavity. More to follow...
Curing is not an exact science... So it's not a sin to bin.
Great hams, from little acorns grow...