I have made 5 Xmas pudding today and they are on the hob steaming. The recipe suggests steaming for 3.5 hours then a further 3.5 on Xmas day. The problem is, I forgot to cover the pans for the first 1.5 hours of steaming. Should I increase the steam time by an hour or more or don’t worry about it? Any help or suggestions will be really apreciated.