- Dear All,
I live in western Minnesota and have a question concerning longevity of
carragheanan. Recently I made up a batch of size with regular tap
water. It had lost almost all of it viscosity the next day so I had
about 1 day to marble on it. The next time I marbled I used distilled
water from the grocery store. It lasted 2 more days. One of the first
signs that my size its on its last days is that when I go to skim the
tank it will leave behind a residue that looks like stretch marks.
Normally I would just accept the fact that when it comes to
carragheanan, life is short, but then I know of another marbler in St.
Paul who is able to marble for days or weeks with the same batch.
Heres what the Public Service saids about how are water is treated:
"The water treatment used is a lime water-softening process, a hightly
efficient filtration system and the use of ozone for primary
disinfection and ordor/taste removal. The new water plant has
significantly reduced the amount of chlorinated by-products generated".
I had the water treatment run a quickie test for me that involved 2
shallow pans of water, 2 with tap water and 2 with distilled water in
it. On each set they covered one pan and left one pan uncovered. They
began the test of Friday and returned on Monday to find that all four
pans had formed a skim on the surface. And thats all the further they
Should I be adding bleach? Storing my carragheanan so there is less
Any comments would greatly be appreciated.