Clearing the jelly looks simple until you make it all the way down to the bottom and notice the bomb dispensers! The first row is simple single jelly, then you have 2 hit blocks, then 3 hit blocks, then 4 hit blocks in the last row. The one thing that makes this level hard is the bombs, because they are only 7 move bombs. All the jelly after the first row, it is all double from there on out.
Patricia Frederick’s Tips for Candy Crush Level 273
The heavy blocks require lots of striped/wrapped combos. Be careful of the bombs—they recycle through the teleports, so remove them as soon as you see them.