Hey guys, hope someone can help, I've been brewing a while using the bottle top method, but have recently tried to use a glass media bottle instead of the plastic ones that always crack!

Every time I try to sterilise the media bottle it leaves condensation! Obviously I haven't filtered into it with it being like this as I will just end up with cloudy end product.

my method has been, clean bottle with anti bac soap and boiling water then rinse with distilled water, then bath in 70% isoprop then whack in the oven for an hour at 400 with foil on top. Once I removed from oven, after 10 mins I start to get condensation.

anyone else get this? Any advice would be great.

Thanks guys