Any Commission employee designated for the purpose, shall have access to, and may enter at all reasonable hours, all places where milk is stored, bottled, or manufactured into food products and any designated employee shall have the power to inspect books and records in any place within the Commonwealth for the purpose of ascertaining facts to enable the Commission to administer this chapter. All information ascertained shall be confidential, unless the parties concerned agree to its being given out. The Commission may combine such information for any market and make it public.