mitBilgine, the problem was not whether the meaning of טעימה is tasty or delicious. Recently Duolingo has been accepting either delicious or tasty for טעימה
“This sauce is tasty”... הרוטב הזה טעימה
“This is tasty sauce”... זה עוטר טעים
It would be better if you check all the threads before posting, because your question was already answered above.