Level 18 is the eighth level in Candy Factory and the 9th jelly level. To pass this level, you must clear 19 single and 29 double jelly squares in 25 moves or fewer.
When you complete the level, Sugar Crush is activated and will score you additional points.
This was once the only timed level in the whole game that was unaffected while other timed levels were changed to other level types, until May 2, 2018, when timed levels were removed and this level was also changed. Additionally, it used to be the first Jelly level which had double jelly. It is now the first level with double jelly again, but it is a new level and wasn't reverted to its original version.