Taste-Not right

[lucci922]

I made 20 gallons of Chianti. It has fermented to dryness. The first racking took place in January and then a second in May. In May when I tasted it, it had a funny taste initially but the after-taste was smooth and tasted just like Chianti. I am wondering if there is trapped gas affecting the taste or could I of put too much meta in the carboy when racking to affect the taste? I only put 1/4 teaspoon for 5 gallons. All of my other wines tasted good, it is the Chianti I am worried about. Maybe it just needs to age longer?
Any input would be greatly appreciated!

 

[Sacalait]

If you're wondering about trapped gas why not degas one carboy (if it's in a carboy) to check your theory. Trapped gas will affect the taste.

1/4 tsp of K-meta to a 5gal carboy is the recommended dosage but you didn't say if you had added any on a previous occasion.