Making curtains - do I need to prewash the lining fabric?

[YuleABUnREASTIEable]

It’s been ages since I’ve made curtains and can’t find a definitive online. I want to say no I don’t but I’m not 100%. The actual curtain material is dry clean only so I won’t be washing the curtains.

Not if you won't be washing them, no.

Brilliant, thanks