In his controversial State of the Union address last week, Mr Juncker pledged to strengthen European industry and invited commissioners to present their initiatives to the public.
Yyrki Katainen, responsible for growth, jobs, investment and competition and industry commissioner Elzbieta Bienkowska had their turn on Tuesday but offered a list of already-presented reforms peppered with references to cyber security, waste management and environmentally friendly cars.
Martina Werner, industrial-political spokeswoman for Germany’s Social Democrat (SPD) dismissed the commissioners’ comments as “labelling fraud”.
The fresh criticism came after EU finance ministers rejected plans to extend the euro to all member states.
Jeroen Dijsselbloem said: “Joining the euro depends on the willingness of the countries and their citizens.”
Mr Juncker used his annual address to push his dream of greater financial integration and a European finance minister.
He wants the EU to become more federalist and under his vision, joining the euro currency and passport-free Schengen zone would be norm across the continent.
Mr Juncker promised to propose technical and financial help for the willing to jin the eurozone, quickly triggering concern from influential German members of the European Parliament, like the deputy chairman of the economic committee Markus Ferber.
The EU chief’s call was interpreted by some in Germany as meaning the Commission would be lenient in assessing the readiness for the single currency of the mostly former communist and poorer eastern European countries like Bulgaria or Romania.
The European Commission President also said he wanted all member states to join in a European defence union and hinted that more decisions would be taken by qualified majority votes, including on sensitive areas such as tax.
Mr Juncker wants Europe to have a single president although most countries ruled that out almost immediately.
Germany’s media has been particularly scathing of Mr Juncker’s speech with the influential centre-right newpaper Frankfurter Allgemeine Zeitung accusing him of trying to create a super-bloc by disempowering member states and installing an all-powerful president.
(Additional reporting by Monika Pallenberg)