Does anyone have experience freezing starter wort? I make 2-3 gallons of wort, DME or 2 row. I fill used but sanitized 1 to 1.5 liter water bottles most of the way, squeeze out the air and tighten the cap. This is so the it can expand when frozen and not burst the bottle. I freeze them in the chest freezer and use as needed. Just defrost a day or two before you need it. I can't think of a reason this is bad and have been making beer this way without Incident. My friend thinks there is something wrong with it but can't give me a real reason. Any input? Anyone else doing this?