"Jonathan Sachs" > wrote in message
...
> On Fri, 19 Oct 2007 12:01:46 -0400, "Dee Dee" >
> wrote:
>
>>5 teaspoons each time out of the price of a large container of yoghurt -
>>you
>>do the math. How many teaspoons can you get? A lot.
>>I probably buy the most pricy of yogurts, and I consider it thrifty.
>
> 192 teaspoons, which is enough for 38.4 batches, if the yogurt lasts
> that long. If it lasts two weeks and I can time everything right,
> I'll get to make two batches before I have to throw out any of the
> yogurt that I haven't used. If I slip, I'll probably get one batch.
> So I'll end up buying commercial yogurt 1/3 to 1/2 of the time.
>
> When I have time I'll do the math and see which would be cheaper, that
> technique or using the commercial starter.
>
> Maybe I don't need a whole package of commercial starter to make a
> batch. I'll experiment with that.

So, buy the 1 cup size of plain yogurt. $0.89 or something like that?