CereousBrewer
Well-Known Member
I just bought two, 6.5 gallon used carboys and they both have a white residue inside. It's not an even coating, but appears as if something dried on the inside as it ran down the sides of the carboy.
I soaked them for 24 hours in Oxiclean and hot water and even brushed with a carboy brush...no luck.
I then soaked them in vinegar...no luck.
I then tried some concentrated hydrochloric...no luck.
At this point I'm wondering if they may have had something in them that etched the glass as it evaporated. If that's the case, I guess I'll use them as is since they are definitely clean.
Anybody have any other ideas to try?
Thanks in advance for your reply.
I soaked them for 24 hours in Oxiclean and hot water and even brushed with a carboy brush...no luck.
I then soaked them in vinegar...no luck.
I then tried some concentrated hydrochloric...no luck.
At this point I'm wondering if they may have had something in them that etched the glass as it evaporated. If that's the case, I guess I'll use them as is since they are definitely clean.
Anybody have any other ideas to try?
Thanks in advance for your reply.