if you mouse over they are already filled you can leave in your bag to auto eat. like normal food. one it reaches 0 it disapears unless its a super jar from IM.

after a fight at the top left of your screen under the player profile picture you can see a red-blue ord if you click it you will auto fill your hp and or sp if needed. (bottles must be in hand)

in IM there is 2 Super Jars called HP bottle and SP bottle that hold about a mil or 2. these are "true sp and hp bottles" and if you played other games that has hp or mp charms then i think you know what they do. (auto eat/fil after every fight)

aniways all those bottles you have lying around thats takinhg up space use drag and drop onto the super jar or click the super jar and a menu pops up "fill" or "cancel". click fill and every bottle of that type thats in your hand will auto fill the jar disspearing from your inventory (don't worry they stockpiled in the super jar and you can get more from mall or drop events) you do not fill with syrup or other types of food. its "hp/sp" spedific blue/red dyed fake energy drinks they want you to waste money on getting in mall. so i'd just wait till they give you free from events packs or quests.

the super jars are tradeable BUT only the sp/hp the player filled in it can be used by that player. similar to if you fill a picnic basket or store room and trade it. they only see what they put in it.