Turbo cider 3 day fermentation, wonder if it's died?

Question

I made a batch of turbo cider last Sunday (2022/10/02) and it slowly started to ferment over the next three days, peaking at about an inch of foam on top. Please see below for photos.

However I checked today (2022/10/05) and there are no signs of any fermentation (i.e. foam, bubbles in the bin or air lock). My cider was kept in a space with a temperature range of 18C-21C and was undisturbed.

I'm still new to homebrewing and turbo cider so am confused if the fermentation is complete or it's somehow dead. Looking for some insight/guidance please!

Ingredients:

• 3L apple juice
• 1L pomegranate juice
• 250g sugar
• cider yeast
• yeast nutrient

Photos of the fermentation:

• Day of fermentation
• Two days after fermentation
• Today, 3 days after fermentation

Answer 1

Thanks to the Facebook group Turbo Ciders For All.

I took a gravity reading and as it's less than 1.000, so can conclude that it has not finished fermenting. I'll check again in 2 days.