On 11/20/2012 9:39 AM, Geoffrey S. Mendelson wrote:
> songbird wrote:
>> the process go more quickly. i would imagine
>> that you do have the lid on during this time
>> to keep dust and other contaminants out.
>
> Thanks. The problem is that the crock is about a gallon, and I want to
> do small amounts.
>
> I wasn't clear. I intended to ask about leaving the cans unopened.
> I assume they would still stay sealed.
>
> Geoff.
>
They will also explode. Heating a sealed can is dangerous. Pressure
can build up in the can, possibly turning it into a grenade.