Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on Form S-3 of our
reports dated March 1, 2010, relating to the consolidated financial statements and financial
statement schedule of Ferro Corporation and subsidiaries (the “Company”) (which report expresses an
unqualified opinion and includes an explanatory paragraph relating to the Company’s change in its methodology of accounting for uncertainties in income taxes in 2007), and the effectiveness of the Company’s internal control over
financial reporting, appearing in the Annual Report on Form 10-K of Ferro Corporation for the year
ended December 31, 2009, and to the reference to us under the heading “Experts” in the Prospectus,
which is part of this Registration Statement.
/s/
Deloitte & Touche LLP
Cleveland, Ohio
July 27, 2010