[gypsy]

I have loads of comfrey tea in bottles, will it keep until next year?

[SUTTY1]

Dont know myself but a few people on my allotment site store some and use next year. They have done for a long time and appear to get good results.
I have just used my last on the overwintering veggies and compost heap.(works well for me) Will start a fresh brew in the Spring

[gypsy]

I want to use some when I plant spuds but the comfrey is not growing then so hopfully this tea that I have will be ok for that.

[Kristen]

Might be worth getting it out of the cold for the winter?  Dunno if it would effect he chemical composition at al, it sure does for some organic chemicals, but even if not the bottles might break if they freeze!

[gypsy]

I will stand it in polystyrene boxes in my shed, it is defo not coming into the house it smells far to much for home comforts over winter.

[JayG]

Don't use the stuff myself, but found this information for you, although you might wish I hadn't! 

[aelf]

I keep mine in a water butt and try to use it within the season but there is usually some left for next year. Seems to still work 

[Coach]

I  never finish the tea ( can't drink it in one session)by the end of the growing season so I always have some left. I use it in strict rotation using the oldest first!!