Have noted some discussion regarding sealed containers and CS in the past, (sorry but I didn't follow the conversation all that closely.......the light bulb has just started to flicker), and have just realised what may be going on with my CS.
I have a 1 litre, (don't know what that is in ounces, about 1/3 of a gallon? ), clear bottle with a glass stopper and several other clear glass containers which have screw tops with rubber inserts and I have noticed that the glass bottle always has silver plating out on the glass and the CS goes a pale golden colour while the other ones, with the screw tops, stay clear with no plateout. The discussion a while ago regarding 'air' has just made me see that this is what's probably going on with my CS. I haven't bothered about it at all in the past, but did wonder why this bottle always changed compared to the others. Like I said, I have never really concerned myself over this and have just put it down to 'one of lifes mysteries' and only now see that CS should be kept in an air-tight container........yes? Not looking for an indepth analysis but this sounds like it could right.........yes? I usually use 40ml, (think that's approx 1 ounce), as a starter when producing a new batch and it may be this particular pale golden CS which results in colour, (can't distinguish what colour other than clear though as it's so faint, maybe green, I think green comes before any yellow hue), in my 'new' batch on occasion. I rotate about 4 or 5, one litre containers and it's a while till I get to the glass one with the glass stopper. Need to take note the next time I use this 'coloured' batch as a seed and see what happens with the result. It's OK, I've just never concerned myself unduly with the 'science' of CS in the past that's all, I usually just 'make it and take it'. Neville.

