Rhubarb, orange and ginger jam

Jay asked me to post this recipe   

3lb rhubarb  cut in pieces 
3lb sugar
2 large or 3 smaller oranges use the Juice and rind
Ginger around finger size piece grated 
Juice of a lemon

Add everything to pan and leave overnight
Next morning bring to the boil and continue boiling to setting point
Jar into hot sterile jars add lids.  

I use an old set of Avery lb and oz scales so I don’t do metric. 

Think that’s everything.