Isostatically molded from pure PTFE, inert and with super smooth internal finish. Base machined flat for good heat transfer -- use at temperatures to 260°C with controlled hot plates, ovens, etc. With pouring spout.
Safety Note: Even when heated in excess of 400°C, PTFE articles retain their shape although some decomposition will commence. Other fluorocarbons such as FEP and PFA do not have this property and articles in these materials will soften and collapse at temperatures in excess of their melting point.