MacBludgeon said:everything I've got goes on at 30, if it doesn't cope then it's no good. All the merino wool stuff has done just fine like this.
Same here but 40 'cos our crappy washing machine has no cold/delicate 30 programme. I've given up on synthetic fabrics for top half cycle kit - it just ends up stinking without either really harsh washing powder or a 60 wash, or both!
For those with washing powder problems, or using pure soap flakes - we've got balls and they're great: Get your balls here