When to add isomerised hop oil?

[cochised]

Hi, just purchased an NEIPA kit from an online store.
https://www.geterbrewed.ie/neipa-beer-kit/

No instructions and contains the hop extract so not sure when to add it.
Seen different opinions elsewhere online.

Any help much appreciated

 

[Northern_Brewer]

Your confusion is probably because there's two kinds of hop extract, for bittering and for flavour. This one is for bittering, so it wants to go in at the start of the boil, the flavour kind typically gets added after the boil.

 

[cochised]

Cheers for your reply, makes sense

When you say boil though, I assume you mean when I add the extract as I'm just adding those to 3 litres of boiling water and then topping up to 20 litres or so.

Edit: got instructions from supplier so all good.
Thanks