Sourdough starter is a kind of pet. A pet yeast colony, if you want to be scientific about it. Owners give it a name, feed it (daily or weekly, depending on how often they bake bread), make sure it's neither too warm not too cold. The pet can live for years, and some famous colonies have been going for centuries.

Here's the problem: the pet is seriously not kosher-for-Passover.

I'm planning to start my own sourdough starter. But after going through all the trouble, I wouldn't want to kill the pet before Passover. Particularly since the flavours of the starter develop over years.

Is there any way I can keep my starter? Not going to use it, obviously, but can I keep it alive? Can I, for the sake of the argument, define it as a 'pet', rather than 'bread'? Is there some other loophole?

(I live in Israel, so finding a goy pet-sitter isn't really an option.)

  • If a gentile is really a non-starter then your hopes may fall flat here. – Double AA Sep 29 '19 at 1:37
  • Does it need to be refrigerated? I don't see why you couldn't rent space in your home to a nochri through your rabbi and sell him the starter if not, just like we do with whisky and other chametz – Josh K Sep 29 '19 at 3:07
  • @JoshK It needs to be refrigerated, yes. If it's not refrigerated, it grows too fast, and needs to be fed every day. If it's refrigerated, I can feed it before Passover, and then after Passover. – Galastel supports GoFundMonica Sep 29 '19 at 6:22

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