Made a 2l yeast starter with wyeast 1968 but wasn't able to brew the day I had planned so i let of set at room temp for 48hrs the capped it and put in the fridge. Planned on brewing today so i pulled it out and poured of some of the liquid and gave it a smell and taste and it's straight green apple cidery. So my question is if i make another yeast starter using the same yeast will it clean up the acetaldehyde or should I just pour out and use something else?