I had some product freeze during transit a week or two ago...it's something I'd never really thought/worried about before. I emailed Nick about it and he said the products that froze shouldn't cause any problems, but he'd replace them if they did.
Sent from a Mobile Telephonic Contraption.
This! Some you can get away with just putting vents in the can. Vents can be found on eBay or Amazon.
That being said, my last gas cans were the race type that I got on sale.
VP Race Jug