Foam after 4 days

[Scrumpy1967]

I normally brew my cider from a kit but I was given a press and a load of Apple so I thought i would give it a go. I got roughly 2 gallons of freshly squeezed apple juice which was strained and a crushed campdem tablet added to each. Everything was sterilised. 24 hours later i added Lalvin - Nouveau Wine And Cider Yeast - 71B-1122 and within 12 hours I had the normal layer on the top with had disappeared the next day. On day 4 one of the dj now has a fine white foam on it and the other one has not. Both are bubbling away well. Just wondering why one is starting to foam and what it was.

Thanks

 

[RPh_Guy]

Foam is generally normal during fermentation.

Welcome to HBT!

 

[Scrumpy1967]

Thank you. Just strange how one DJ is and one is not.

 

[Chalkyt]

Yep, I have the same thing. Similar mixes of juice (60/40 in one and 40/60 in the other of Pink Lady and Granny Smith), same yeast (SO4). One is generating lots of foam and the other bubbling a bit slower with no foam. SG of both is currently the same at 1.020. Short answer... dunno unless the slightly different OGs at 1.060 and 1.054 make a difference.

 

[Scrumpy1967]

it hasn’t increased today. The other one has stopped fermenting after 5 days, is this normal

edit

the hydrometer reading is perfect for bottling. Tasted some and it’s quite dry with a good taste of apples. Going to carbonate some and have some flat. just going to leave it an extra day the bottle it.

 

[myndflyte]

Things are probably still happening even though the one doesn't look like it. Everything seems fine.

 

[Scrumpy1967]

I picked up some great tips from this forum. Going to ditch the kits and just use my press. The only thing I will invest in is an apple pulper as the food processor method for pulping is a long winded way of doing things.