FETA CHEESE PRODUCTION Georgis Tavantzis – 5/2005 HISTORY The history of cheese is as old as humanity itself,and is connected to the taming of domestic animals 10000 years B.C. ago. The cheese is however believed to be first prepared roughly 8.000 years ago.The discovery was completely accidental during the transport of milk in stomachs of young animals. The word feta means brine cheese and according to greek mythology the gods sent Aristaios ,son of Apollo to teach the greeks the art of cheese making.There are a lots of records though regarding the consumption of cheese in ancient Greece.According to the myth ,Cyclope Polyfimos was the first to prepare cheese .Transporting the milk that he collected from his sheep in skinbags made of animal stomachs,one day he realised that the milk had curdled and had taken a solid ,tasty and conservable form. The way feta is produced since then has remained pretty much the same and only in areas such as automation and packaging it differs a lot.Feta as a name exists from the 17th century and refers to the practice of slicing up cheese to be laced into barrels.Feta’s growth international rate is mainly a result of the mass immigration of greeks to various countries during the 20th century. FETA PRESENTING THE FETA CHEESE The European Comission has instituted the protection of the geographical origin of various products,through their characterisation as products of Protected Designation οf Origin(P.D.O.).This can be used against producers providing the markets with imitations.A mere mention of a product name brings its place of production immediately to mind and it is fair and in accordance to international treaties to protect its origin name.Finally two years ago after several arguments with countries,which supported that name feta has become a common one,the name was re-introduced in the register of P.D.O. with the (EC)1829/2002 ruling of the commission. DESCRIPTION OF FETA According to the Code of Foods of Greek Legislation, Feta is produced either from sheep milk or mixture of sheep and goat milk, in the regions of Macedonia, Thrace, Epirus, Thessaly, Sterea, Peloponnese and Lesvos Island. It must be allowed to mature for at least two (2) months in wooden barrels or 1 metal containers, covered in brine.It is a soft cheese with no skin, with small holes and a compact touch, with few cuts. It has a clean white colour, a pleasant lightly acidic flavour and a rich, distinguishable aroma.Its maximum moisture is 56%, its minimum fat content in dry matter is 43% and its pH varies between 4,4-4,6. NUTRITIONAL VALUE We already know that cheese is a major part of human’s diet as depending on the kind of cheese and production method ,it contains proteins,fat,calcium and vitamins in varying percentages and nutritional value.Feta is the main greek cheese and has a very high nutritional value according to the table shown: FETA IMITATIONS A number of countries have tried to substitute feta with brine cheeses made with cow milk due to lack of sheep and goat milk which represent great differences in aroma,flavour,chemical composition and sensory characteristics.One method imitates the traditional method of feta preparation,but adds chlorophyll to cow milk ,in order to achieve the white colour,and lipase in order to approximate its sensory characteristics.Another method uses ultra filtration to condense cow milk prior to coagulation,and straight into packaging.In both cases,cow milk cheese fails to approximate the representative sensory characteristics of traditional feta. PRODUCTION Today, Feta is prepared in Greece either in small family-run cheese dairies where tradicional technology is applied,or in industrial units equipped with modern equipment aiming at the minimisation of production cost and the improvement of product quality,that still respect the basic principles of the traditional technology of cheese making. GOAT AND SHEEP MILK AS RAW MATTERIAL FOR FETA PRODUCTION 2 Feta is prepared from sheep milk or a mixture of sheep and goat,which cannot exceed 30% of the total.The raising of goats and sheeps dates from the ancient times.This branch of sheep and goat breeding always flourished in the Mediterranean countries.Milk comes from sheep and goat races ,which are traditionally raised and adapted to the region where their diet is based on the local flora.Both kinds of milk are mainly produced in Greece’s mountainous regions ,where an ecosystem rich in plant and animal life is to be found due to the climate and ground conditions.The rich sensory characteristics of sheep and goat milk ,and therefore of the feta produced with it ,are owed to this unique ecosystem,combined with the natural raising of indigenous sheep and goats. PRODUCTION METHOD Feta is a high quality cheese,conserved in brine,in sliced form.Milk is corrected by producers and brought to the cheese dairy in large kegs.The milk coagulation has to occur within 48 hours from its collection.Initially,sheep and goat milk is standardised and then pasteurised in 68ºC for 10 min(slow pasteurisation) ,or in 72ºCfor 15 sec(fast pasteurisation). Following that milk is refrigerated in 34-36ºC,lastic acid starter cultures and chloride calcium in a proportion of 10-20/100kg of milk are added;and finally 20 mins later ,enough rennet for coagulation to occur in 45-60 mins. As soon as milk coagulation is complete,the curd is cut in small cubes (1-2cm wide),and left for 10 mins.The curd is then transported progressively and carefully into moulds,which favour draining and shaping of small cuts.The filled moulds are then transported to a room with a temperature of 16-18ºC ,where they remain for 18-24 hours.During this period ,they are periodically turned over for better draining. The next day cheese is removed from the moulds and placed temporarily either in wooden barrels or metal containers ,where it is salted in layers,so that final concentration of salt in the mass of cheese is roughly 3%. After 2-3 days ,cheese is placed into barrels or other containers with brine,containing 7%sodium chloride(NaCL).They are transported into the maturing chambers ;rooms with temperature of 16-18ºC and very high relative humidity,where they remain for 10-15 days ,until the first stage of maturing is complete.During this time feta’s particular sensory characteristics are developed.At the end of the first stadium of maturing,Feta’s moisture is lower than 56%,and its ph ranges between 4,4-4,6. Then during the second stage of maturing,feta is transported into refrigerators with a temperature of 2-4 degrees Celsius . The total maturing time of Feta lasts until 2 months.It is worth mentioning ,addition of any form of powder or condensed 3 milk,milk proteins ,casein salts,colour, conservatives and antibiotics to either milk,Feta or brine is strictly prohibited. CONSERVATION Until its distribution,Feta is conserved in refrigerator units with a temperature of 0-2ºC. During its conservation in metal containers or wooden barrels,it must be covered with brine containing 7% salt,and avoid contact with air.This way,it maintains its freshness and rich sensory characteristics, Feta can then be distributed to the consumer straight out of the barrel or metal container.As far as packages are concerned,feta is also distributed in airtight packages sealed in vacuum and in containers where feta is preserved in its natural brine.These packages offer great convenience to the consumer. LINKS Ministry of Argicultural Development and Foods (www.minagric.gr) Food and Drinks (www.foodanddrinks.gr) www.FETAMANIA.gr Recipes (www.sintages.gr) Agropolis (www.agrool.gr) IATROnet 4 (www.iatronet.gr) TRADITIONAL RECIPES(STARTER-MAIN DISH) 1.Aubergines with feta cheese and tomato sauce 80gr fried aubergines(larged sliced rings) 40gr tomato sauce with basil 40gr feta cheese,crumbled,peppery 1gr thyme for the tomato sauce 100 gr fresh tomatoes,finely slopped 30gr onion,finely chopped 5gr garlic 10gr fresh basil leaves Preparation: Deep fry the sliced aubergines in hot oil and put aside.Prepare the tomato sauce with the basil.Place the aubergines in a small dish and sprinkle the sauce.Cook at low temperature for 15 minutes,and then sprinkle the crumbled feta and the thyme. 2.Thrace beef in crock with feta cheese 150gr beef shoulder cut in pieces 70gr feta 60gr potatoes cut in cubes 50gr artichokes in slices 10gr corn flour 40gr lemon juice 30gr finely chopped onion Water,up to 1/3 of the cooking dish Salt,black pepper,finely chopped parsley Preparation: Wash well the meat and fry it lightly with the onion until it browns.Put the meat in the dish with the water ,the olive oil,the salt and place in the oven to cook for approximately one hour. Ten minutes before taking out of the oven ,add the crumbled feta and the courn flour thinned in the lemon juice ,and cook until the sauce thickens.Garnish with finely chopped parsley and serve. BON APPETITE!... 5 6