I did a dog vomit stain today on a mint condition pale cream 80/20... the dog had scoffed a load of cheese before barfing it back up leaving a nice yellow patch
I was torn between going straight in with the sod met and sanitising after, or doing the other way round. After scratching my head for a bit (ok flipping a coin) I doused it in m-power at about 1:50, with some odour neutraliser on top, left it for about 20 minutes whilst doing some other bits n bobs and then flushed it through... 100% removed
The stain was less than 48 hours old, if it had been there longer I'd have probably done it the other way round I think.