Bugs in my airlock!

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk:

AlexKay

Supporting Member
HBT Supporter
Joined
Jan 18, 2020
Messages
196
Reaction score
148
Location
South Bend
688BDD27-1D85-466F-BE37-198AA2B3DCD0.jpeg


Aieeee! Little ones, don’t look like fruit flies. Four batches in the freezer, at least a big in each of them. Any entomologists out there? Is my beer ruined?
 
OP
A

AlexKay

Supporting Member
HBT Supporter
Joined
Jan 18, 2020
Messages
196
Reaction score
148
Location
South Bend
Internet pictures (ugh) say maybe they do look like fruit flies. $&@/:”! What’s the chance they made it through the airlock?
 

seatazzz

Well-Known Bloviator & Pontificator
HBT Supporter
Joined
Feb 4, 2016
Messages
2,827
Reaction score
4,002
Location
Seattle
Do you have the plastic cap on your airlock? Back in the day before I had a ferment fridge, I had plenty of fruit flies in my airlock after I decided (wrongly) that I didn't need that lid. The holes are tiny enough that it's hard for them to get through, and almost impossible for them to fight the escaping co2 to get down into the beer. Your picture looks like the larvae, not the adult flies, so one of them got in there to lay eggs. Refill the airlock with vodka or starsan and that should take care of that problem.
 
OP
A

AlexKay

Supporting Member
HBT Supporter
Joined
Jan 18, 2020
Messages
196
Reaction score
148
Location
South Bend
Little caps tightly on, yes. And they got into four separate batches (all sitting in the same chest freezer.). I’m going to spray everything down with bleach. I’m kegging one of the batches, so I’m going to taste that one and keg it if it’s ok. The other three are going into bottles and I’m going to leave them out for a bit to make sure the gravity isn’t changing.
 

davidabcd

Detroit, Mi.
Joined
Jul 19, 2018
Messages
2,079
Reaction score
2,331
You can use a short nylon stocking over it.
I've had the problem before and the aroma of fermenting beer is a magnet for them.
 
Top