4.—(1) Collagen shall be produced by a process that ensures that the raw material is subjected to a treatment involving washing, pH adjustment using acid or alkali followed by one or more rinses, filtration and extrusion.
(2) Collagen produced in accordance with sub-paragraph (1) shall undergo no further processing other than a drying process.
(3) Collagen not intended for human consumption shall not be produced and stored in the same establishment as collagen intended for human consumption unless the collagen not intended for human consumption is produced and stored under the same conditions as set out in this Schedule.
(4) The use of preservatives other than those permitted under European Parliament and Council Directive 95/2/EC on food additives other than colours and sweeteners(1) (as that Directive is amended as at the date these Regulations are made), is prohibited.
OJ No. L61, 18.3.95, p.1, as last amended by Directive 2003/114/EC of the European Parliament and of the Council (OJ No. L24, 29.1.2004, p.58).