[header] How to prevent soggy pastry bases [title] Make the pastry in a cool, clean environment free of wet surfaces. [step] Dry everything before rolling your pastry, and be careful to keep your hands, implements, and surfaces cool at all times. Consider chilling pastry for at least an hour prior to working with it; this helps it to dry out and makes it easier to handle quickly. 
[title] Allow all fillings to cool before adding. [step] Hot and even warm fillings will create steam and moisture that will have nowhere to go but into the pastry.