Pete , just throw the first batch away as you may have dissolved some of it . Temp will not effect it . but make sure the egg shell is as fine as you can get it , I am not too good at keeping notes , but mine was about 6 weeks till done and it stinks when done , I am now thinking there are better ways to add Cal and Phos , one thing you have to be aware of is the PH when using it . 
