The coffee is a reference to this incident -- https://ukaviation.news/spilt-coffee-caused-smoke-and-fumes-on-thomas-cook-a330/ https://ukaviation.news/spilt-cof

The coffee is a reference to this incident -- https://ukaviation.news/spilt-coffee-caused-smoke-and-fumes-on-thomas-cook-a330/ https://ukaviation.news/spilt-coffee-caused-smoke-and-fumes-... -- in which coffee spilt by the pilot caused an electrical fault. Apparently there is quite a lot of high-current equipment in the avionics bay and it is not ingress-protected....