If it's just a few weeks, I've found the fridge to be fine. It will take a couple of feeds over 48h to re-activate completely, but it's otherwise ok.
If you start from scratch, you can get going in 3/4 days if you're willing to throw in a bit of honey or maple syrup at first (1tsp). Without it, it does seem to take a week.
If you start from scratch, you can get going in 3/4 days if you're willing to throw in a bit of honey or maple syrup at first (1tsp). Without it, it does seem to take a week.