How much alcohol can i bring back in the suitcase from Tenerife to Ireland?

I can’t find anything actually solid online. Some websites say 10L of spirits, others say 2L some say 5L.

I do not know who to trust, i’m looking to bring 3 litres of alcohol back, but i’ve heard there’s a one bottle allowance and all.

Is there anyone who is absolutely certain they know what the limit is? Like anyone with an actual experience bringing a few bottles home?