Dr Croubie
Member
Dr, don't use washing powder!
Washing soda - found in the same area as laundary detergent at the supermarket. It's not the clear soda crystal stuff in a clear bag but a finer white powder in a white bag. Last time I bought some it was <$3 for 1kg bag. As for the coffee, the cheaper the home brand the better. You'll need some vitamin C as well. Where you get that in Adelaide is up to you.
The Kodak vision processes well in caffenol.
Duly noted, thanks.
I did check my box of regular laundry powder (Earth Choice) and it actually listed ingredients, first up was "Sodium Carbonate (dense)". Not sure what they mean by 'dense', maybe Anhydrous? But there was a whole lot of other crap in there too, as there usually is. (Even Woolies' homebrand said 'with enzyme action', I'm not sure I want them enzymes drinking my coffee).
At any rate, I'll probably buy some pure stuff, I'm investigating other chemicals for home-made emulsions at the moment, cheapest so far is Auschems, 500g for $13 (their silver nitrate is $50 for 25g which is much better than a local shop which has 25g for $125 in analytical-grade). Meanwhile, where can you get 1kg of white powder for $3? (besides out the back of Flinders Street Station?)
For coffee I originally bought the cheapest in my local IGA, which was Brasilia non-instant. But then I tried it and liked it, so instead I've got Woolies' homebrand instant coffee, even cheaper than International Roast. Is there a direct inverse-correlation between taste/price and caffenol suitability? I couldn't imagine anything that tastes worse than International Roast, so anything cheaper than that must taste worse (if that's possible) and might be better for caffenol?