I don't understand it - my washing machine is only 6 months old, I use bio powder (not much), no conditioner, don't overload, run regular 90 degree washes with vinegar/soda crystals, but recently all my loads are coming out smelling less than fresh. This is on 20 and 40 degree cotton cycles. I dry it all straight away, either out on the line or on the heated airer.
What should I try next, please? Thanks in advance.