I would like to get a reasonable amount of 60mg nic in PG and store in the freezer in 120ml amber bottles. I leave in a rural area and on rare occasion can have a power outages from storms that might leave me without power for a couple days. If this nic solution defrosted can it be refrozen when the power returns or is it damaged with multiple freezes? This would only occur every 2 or 3 years but just curious if re-freezing is ok with the nic.