Hi

[Marty F]

So yesterday I brewed a 23L batch of best bitter using all grains and boil in the bag method. I left it overnight and now the temperature is around 24 so today I am going to add the yeast and pray.
The wine from supermarket fruit juices looks interesting, I assume that you look for a pure juice variety without added sugar and preservatives?

 

[Chippy_Tea]

I cannot answer the first part but 100% juice is best and always avoid preservative.

 

[Banbeer]

temperature is around 24 so today I am going to add the yeast and pray.

You will be fine, it's going to cool down a tad all next week in the UK to around 22°C