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Austrian snail farmer Andreas Gugumuck collects snails (Helix Aspersa) in baskets in his farm in Vienna July 10, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 10, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

A snail (Helix Aspersa) sits next to her eggs in a farm in Vienna July 10, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 10, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

A snail (Helix Aspersa) and a baby snail sit on a leave in a farm in Vienna June 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken June 12, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

A snail (Helix Aspersa) sits on a leave in a farm in Vienna June 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken June 12, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

A baby snail (Helix Aspersa) sits on a finger in a farm in Vienna June 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken June 12, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

Austrian snail farmer Andreas Gugumuck collects snails (Helix Aspersa) in baskets in his farm in Vienna July 10, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 10, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

Austrian snail farmer Andreas Gugumuck collects snails (Helix Aspersa) sitting on panels in his farm in Vienna July 10, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 10, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

Austrian snail farmer Gugumuck shows snail-liver in his farm in Vienna July 10, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 10, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

Austrian snail farmer Andreas Gugumuck serves snail-liver during a guided tour in his farm in Vienna July 9, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 9, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

Snail-liver is pictured on Adreas Gugumuck's farm in Vienna July \9, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 9, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

Austrian chef Konstantin Filippou prepares a snail dish in his gourmet restaurant in Vienna July 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 12, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )

A snail dish is pictured in the gourmet restaurant Filippou in Vienna July 12, 2013. Andreas Gugumuck owns Vienna's largest snail farm, exporting snails, snail-caviar and snail-liver all over the world. The gourmet snails are processed using old traditional cooking techniques and some are sold locally to Austrian gourmet restaurants. Picture taken July 12, 2013. REUTERS/Leonhard Foeger ( AUSTRIA-SNAILS-FARMING/ )