I have a 5 gallon carboy of concord that has finished fermenting and has been allowed to settle to clarify. the last time I racked it the wine was very clear. I went to rack it after another 30 days and found it to be cloudy. It has not been disturbed or moved but has been sitting in my garage, protected, with an average temp of 40-45 degrees. The airlock was still full and I sterilize my equipment and carboys as I use them. Not sure if its pectin haze, contamination or to cold of temperature. Last time I racked it the SG's showed .995. Never had this happen before. Anyone have any thoughts? Thanks.