And again…That needs filtering again.
It's a bit nutty....Honey whys my coffee taste like shit!!
Refilter through the same filter at least one more time. Each pass through the same filter fills up the pores and catches smaller and smaller particles.View attachment 52019
The solution after filtering before precipitation
I'm guessing he is only using the filter part.Refilter through the same filter at least one more time. Each pass through the same filter fills up the pores and catches smaller and smaller particles.
But, it also will stress the coffee maker pump. Best to construct a proper vacuum setup.
I'm working on adapting an old vacuum cleaner motor assembly, with a stopcock valve to adjust the vacuum flow. The old vacuum was free, and I have all the parts lying around.
I just bought 2 Buchner funnels, which will help MASSIVELY when filtering, now that I'm doing larger volumes.
Nice funnelHe would be better off with a big glass speed funnel, they don't require a vacuum, they filter at a reasonable speed, and they take a big (50 cm) filter paper folded into the cone.
View attachment 52039View attachment 52040
Small hobby producers who tend to use coffee filters need to get the gold purity high enough to visibly be pure, as is seen when the freshly poured bar cleaves along the top surface exposing crystals below. This is not attained with coffee filter filtration but the need exists for knowing the purity sans XRF or other analytics not available to the hobbyist or home refiner.We do not know your intentions with the gold, so hard to say if it is necessary for you to refine it. For me, 90% gold is sellable for practically same % than 999 gold... So maybe waste of time here.
Hello Thank you for the kind words, we are still in business and these are our current pricesThis is where to get this type of funnel.
the big one holds 1 liter
I was looking at pricing from this Canadian supplier and I checked out beakers. WOW. beakers
These prices for 4 and 5 & 10 liter beakers are excellent. Either I am in a time warp, the company went under years ago and didn't remove it's website or they will soon be receiving a bunch of orders from beaker refiners!
Yeah, that is the right point. I do not have this issue since I always had access to XRF.Small hobby producers who tend to use coffee filters need to get the gold purity high enough to visibly be pure, as is seen when the freshly poured bar cleaves along the top surface exposing crystals below. This is not attained with coffee filter filtration but the need exists for knowing the purity sans XRF or other analytics not available to the hobbyist or home refiner.
The reason for this is they then know the gold is at least 999+ fine and they will not be subject to dishonest gold buyers XRF magic chopping off a few percent on the purity when they pay you.
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