I would like to do a series of top cropping. This week I aim to brew a session dark mild - 4.1% on Wednesday. On Friday I want to do a session pale ale 4.2% On Sunday if everything goes well I would like to squeeze in a chocolate almond ale at 5.8%. I would like to give top cropping a try so I could top crop and drop into the fermenters at the 48 hour mark for all three. I will be using WLP001. I have read to ditch the first skim at the 24 hour mark and then harvest the 48 hour or 50% attenuated mark. I think all that I can feel out and put my brand new refractometer to use. I’m just unsure how much volume of top crop I should collect?
Can I collect enough top crop from one alone to do a 1.052 beer? Would I be better off making a starter large enough to split between both low gravity beers then harvest yeast from both into the 1.052? Thanks.