[dTal]

Logically, even if milk and sugar made all coffee taste acceptable (spoiler - they don't) that still wouldn't explain why specifically the coffee you buy from Lidl is "the best, most delicious coffee you buy".

In point of fact, cheap Lidl coffee is actually weirdly really really good.

[gambiting]

I was being facetious obviously, by trying to imply that even the cheapest coffee is "the best and most delicious" because the milk and sugar make it all taste the same regardless of coffee beans used. But yes, Lidl's coffee is actually weirdly good despite being unrealistically cheap.