Preventing Efflorescence

I’ve noticed a chill in the air recently and it is most definitely starting to look a bit more autumnal round here. The cooling temperature brings with it a reminder that I need to start being careful where I leave my mosaics to dry if I want to avoid a common problem - efflorescence.

So what is that exactly? Well, it’s a very annoying white ‘bloom’ that appears over the surface of the adhesive as it dries.