Hi Patsy,Our RJ3 Stainless Steel Dripper is designed in California and manufactured in China. Hope this helps!HannahOvalware

What's the best way to clean this? It seems slower than when I first got it. Anyone got any cleaning tips? Was thinking it needs to be descaled?

The question and previous answers are all dated before the mfr redesigned this filter to address concerns about it clogging over time. I bought the new design in Jan 2018 and have not experienced any clogging problems in 6 mos of daily use. After brewing, I immediately dump the grinds and quickly use a soft bristled veggie brush on it under running hot water. That's all I've done for 6 mos. I brew with a medium grind and medium roast beans. If you use a dark roast and/or fine grind, you may experience some oil buildup. In that case, occasional cleaning in the top shelf of your dishwasher should be sufficient.

What is the difference between the copper, gold, and stainless? Are they for different types of coffee makers? I have a chemex 6, 8 and 10 cup.

I bought the stainless filter and it works great. I doubt that there is a difference in the performance in whatever color you choose. I have a gold one for my electric coffee maker and it seems to function the same.

Country of Origin	USA
Item model number	RJ3-04
ASIN	B01G2LO1OG

Ovalware RJ3 Stainless Steel Pour Over Coffee Filter - Reusable Cone Dripper with Silicone Grip - Permanent, Paperless, BPA-Free for Carafes

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