No it was your typical farm food (cattle, grain etc.). Most of these shipments were under armed guard by British soldiers. There was no shortage of food. Whilst the famine itself was devastating, the results were politically motivated and driven.

Grains and other edible crops (peas, onions), livestock, processed meat and produce (between January 1847 and September 1847, Ireland exported more than 7 million pounds of butter).

It was food that could have fed the population. In particular corn/wheat/other grains.

Are you familiar with (a) the climate of Ireland in the 19th century and (b) the growing conditions demanded by (most) spices, cacao, and coffee beans?

Yes, I am.

Then why would you have wondered if Ireland could have grown those things.

I did not. These were just typical examples to illustrate what I had in mind when asking about any homegrown Irish luxury food (I don't know if Ireland has any). Hence the « or something like coffee beans ».