sterilising supers and frames

[CarolW]

Rather than use a blowtorch, which can't do the wood any good, would a couple of days in my kitchen chest freezer kill off all the invisible nasties on my empty supers, frames and brood boxes?

 

[itma]

Not all by any means. (Just some.)

Used correctly (ie lightly 'toasting', not scorching to black ash) a blowtorch isn't going to harm the wood.

 

[domino]

my scorched boxes have a nice varnished finished

 

[EKBee]

Light blow torching for wooden boxes
Freezing frames will kill of wax moth Larvae &eggs but it won't get rid of Nosema spores
Many beekeepers use 80% Acetic acid for this the fumes kill off the Nosema
but it is nasty stuff & you need to handle it with care

 

[Hivemaker.]

Freezing frames will kill of wax moth Larvae &eggs but it won't get rid of Nosema spores
Many beekeepers use 80% Acetic acid for this the fumes kill off the Nosema
but it is nasty stuff & you need to handle it with care

Nosema Apis is susceptible to heat treatment, and Nosema Ceranae (which seems to be more common these days) is susceptible to freezing, for those who don't wish to use chemicals.