i found this which should help:-
Duty Free Exemptions apply for the following items purchased before your arrival in Turkey, and unless stated, you must be over 18 years of age.
•200 cigarettes plus 10 cigars plus 200 gms of tobacco to include cigarette papers. OR
•200 grammes of pipe tobacco or 50 gms of snuff or 200 grammes of chewing tobacco.
•1 x 1 litre bottle of wines or spirits.
OR
•2 x 70 cl bottle of wines or spirits.
•5 bottles of perfume not exceeding 120 ml each.
•Personal gifts to the maximum value of €300 and €145 for those under 15.
•Other beverages: Coffee beans (1kg), Instant Coffee (1kg), Tea (500g), Chocolate (1kg).
You may also purchase additional items: 400 cigarettes, 100 cigars and 500g of pipe tobacco at the duty free arrivals store.
Remember duty free allowances change, so please check before you travel.
i got this info from this website
http://www.taxfreetravel.com/Turkish%20 ... Allowancesremember you can also buy duty free on the plane and also from the duty free shop at
Dalaman airport.
Once your cases are checked in, anything that you buy has to go into your hand luggage that you carry onto the plane not your hold luggage which is your suitcases that are checked in and put in the hold on the plane.
hope this helps.