In the gemaras time, there were many foods that were readily available. One could take a bite of bread, vegetables, apples… No such distinction is made.
Actually, the nosei keilil are all matir drinking coffee, because it’s not gaavah, even though in their time it definitely took considerable effort to make it, as you described.
In addition, what if someone else offered it it to you? The whole premise is based on not learning the sources or even reading them at all. Please do not make halachik pronouncements without doing so.