Originally Posted by Biodeamon

So I've been saving pero shakes up to use at the end of the event (or a rainy day, whichever comes first) but my shakes keep disappearing the day after... Did they change the expiry date to 24 hrs? I checked the wiki and it says they don't dissapear until the end of the event. This has happened on multiple occasions, the first being I had something 3 shakes in my collection but the next day they were missing. I couldn't remember using them but I figured I must have just forgot, however this happened two more times. Where are they going? Did the expiry date change?

are you sure you didnt feed them to kurito? or maybe you had a full presents box and they got replaced by new presents? (shakes you get from collecting scrolls and exploring go directly to your presents box )