I can answer that because I used to make a red bell pepper jelly. 2½ tbsps per kilo of red peppers; or 2½ tbsps for every 2.2 lbs.So how much goes in a batch of jelly and then how much is in 2 Tbsp of the finished jelly?
Since the jelly was in 200cc jars, there were about 12-13 jars per lot. About 1.1 tsps per jar.