Sweaty T-shirts (after washing)

[HaveAQuestion]

DH's Ts still smell after a wash. I was at 30 with bio liquid. Any tips please?

TIA

Soak in a bowl of white vinegar before washing - I buy it in 5 litre containers from the cash and carry

Removes the sweaty smell and doesn't smell of vinegar afterwards.

wash warmer (at 60 if cotton) with bio powder.

or use disinfectant in the wash (dettol has a laundry one, but their normal liquid disinfectant works as well).

Brilliant thanks!