I have 3 metres of a wool/ polyester (either 70/30 or 80/20 %) blend herringbone tweed coat/ suit fabric on which I am reluctant to attempt a pre shrink. I contacted the seller who told me I could machine wash the fabric at 30 degrees low temp, (along with the advice: no bleaching, no tumble drying, single dot iron). Should i trust this advice and go ahead with the 30 degree machine wash, and if so, is it necessary to use detergent?
I have read advice from another online source which recommends pre-shrinking 100% wool fabric by drying it (along with towels wetted with very hot water) inside a high heat dryer for 30-40 mins. I suspect this method would not suit the poly wool blend? Has anyone here attempted this?
To be honest, I feel tempted to skip the pre-shrink altogether, hoping i can have my finished jacket dry cleaned when needed. But then I’m guessing that even dry cleaning causes some shrinkage…
Anyway, I’d really appreciate some advice on this, so thanks in advance!