I got a Sierra Nevada Pale Ale clone from Austin Home Brew. The kit came with 3 bags of hops and the recipe called for 4 hop additions, 1 being a dry hop in the secondary. The second bag of Cascade hops I split(called for .5 ounce addition at flame out, but was in a 1 ounce bag). So I measured them into .5 ounce portions and put them in ziplocks and wrapped the 2nd baggie in tin foil(from what I read hops are light sensitive)...Is this ok, using the tin foil?