Hints and tips showing how to pass level 1624 Candy Crush Saga without boosters by Cookie
Collect the 5 keys as quickly as possible and use the colour bombs to best advantage.
You may be able to switch one with a stripe or wrap, or occasionally one will fall onto the conveyor and you may want to switch them together. I'm not a fan of switching 2 colour bombs but it may give you the best chance of clearing level 1624 as there are very few moves and a lot of thick blockers.
Combos are hard to come by but you really do need those powerful combos to clear level 1624. I used a lollipop hammer in the end after many failures.
You may want to start the level with a colour bomb or stripe/wrap combo, but possibly the best booster is a fish as it will clear the jelly even under blockers.
Video below without boosters.