I use an old t-shirt it works great


"Tater" > wrote in message
ups.com...
> On Mar 18, 10:54 am, "flat skunk" > wrote:
>> It's a UV light issue that makes the hops in beer 'skunky'
>>
>> I just put the carboard box the glass carboy came in over it, but
>> anything opaque would do
>>
>> cheers
>
> ummmm, winemaking
>
> and my primary is plastic not glass. my secondary is glass.
>
> but if a cardboard box will do the trick, thanks
>