Help! How do you get bolognese stains out of a cotton duvet cover?

I use a touch of bleach, baking soda, oxy clean and tide, mix it all together, take a little toothbrush out scrub for a minute or 2, throw it in the wash, hot water, it should come out before you put it in, you should be able to see a huge difference. I do that with all my husband's clothing, he drives truck and other heavy equipment, and he's always covered in oil and such, that's always gotten it out, oh and it's gotten tar and blood stains out too. I hat this white shirt and i was so upset when i sliced my hand and got blood on it, but it worked, and red freezy juice, got that out of white 100% cotton too. Hope it works for ya Ash

Well first off, washing it in hot water may have set the stain for good. You may be able to save it though. Get some seltzer water & some color safe bleach & use a few drops of each, work it into the stain with a soft toothbrush. (A baby toothbrush is best) Dab it with a dry washcloth & repeat until the stain is gone. It may take a few times to get it all out. If this doesn't work, I am not sure what will. Good luck to you.