The last two batches I have brewed have been 1 gallon batches using carb drops. I have used these before a handful of times without issue but the last two seem over carbonated and leave a funny taste in my mouth that's reminiscent of helium or CO2 rather. Tho, from what I have read, the carb drops are "great" because they can help with consistency and avoid over carbonating. Is it possible these off flavors could be related to something else? The current beer I'm referencing has been bottled for 4 weeks now. Is it possible the flavor is still maturing and this carbonated taste will dial back a bit in time?
Has anyone experienced anything similar? I'm having a hard time explaining this taste and could be off entirely on its origin.