I've had few problems with bleached paper but I do suppose that unbleached would be better. Ash free lab filters can be had online as well.
I think the contamination thing got started when someone noticed that the papar had gotten browinsh after filtering, surmising that the filter had reacted with the paper and that stuff was now in their batch of CS.
But the facts are that the color change on the paper is nothing more than dried and oxidized [ionic?] CS and CS will turn that color wherever it dries. Even the lab filters designed to not contaminate stuff turn color when dried.
I sometimes use a paper towel as a filter.
Ken
At 01:20 AM 8/15/01 +0000, you wrote:
>>>>
Speaking of straining the product, I have been filtering each batch using a coffee filter as you recommended in your instructions. This seems to produce a very clear product, but I have read comments on this site indicating that the coffee filters can cause contamination and also allow larger particles to pass through (meaning larger than colloidal size). So....are you sure that this method is OK?? Would unbleached filters be preferable?<<<<
Thanks!
>From: Ode Coyote
>Reply-To: silver-list@eskimo.com
>To: silver-list@eskimo.com
>Subject: Re: CS>(no subject)
>Date: Sat, 11 Aug 2001 07:31:26 -0700
>
><< attach1 >>
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