My Granddaughter was a sickly baby and with tomato based food, there wasn’t a stain I couldn’t get out. I used 3% peroxide mixed with Fairy Liquid in a squirt bottle. I sprayed all the stains and let it seep in for about an hour before putting them in the machine. Some really Stubborn ones, might need a second spray. Peroxide from chemist, £1. 50 a bottle. Make sure it’s 3%, no higher or it will bleach your clothes. Can be used on colours to.