Originally Posted by netjunk1e
You will probably end up with very light carbonation. Check the directions, they say to put 2-4 per bottle depending on the level you want.
I tried them once and was disappointed that you had to put multiple, and they are more expensive than I thought when you have to do that.
I think you're referring to Munton's Carb Tabs, those are a lot smaller. The Coopers are about the same size as a jolly rancher and I only used 1 per 12 oz. bottle, they work.
If you are getting a slight hiss when opening up your bottle, I'd also give at a few more weeks. The carbonation ought to be fine though.