Author Topic: Can the beaker for the STE be Stainless Steel?  (Read 1983 times)

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dirtybird

  • Guest
Can the beaker for the STE be Stainless Steel?
« on: June 14, 2004, 12:41:00 PM »
Can the beaker that is used for the extraction liquid be a Stainless steel beaker? And If not, can Swim use a pyrex dish that is placed directly on a cast iron hot plate?

geezmeister

  • Guest
yes; n.r.
« Reply #1 on: June 14, 2004, 04:27:00 PM »
Yes to the first question; and "not recommended" to the second.


dirtybird

  • Guest
If Swim can only get a temp of 100c and not 105c
« Reply #2 on: June 14, 2004, 04:45:00 PM »
If Swim can only get a temp of 100c and not 105c, how much longer should Swim let it boil for the STE technique? Still 2 minutes or longer? And how much longer?

geezmeister

  • Guest
if you can't get it to temp---
« Reply #3 on: June 14, 2004, 06:26:00 PM »
If you can't get the temp to 105C use a different hot plate, or turn the one you have up a little hotter.

If you are using a coffee carafe to do this, and the carafe has a small bottom to sit on the warmer but is larger in diameter than the bottom, and has a top opening as large or larger than the bottom, you may have more evaporative cooling taking place than you have heat input. Up the heat, or use Or use a beaker or carafe with a smaller top than bottom. whistler teapots are recommended if you don't have a beaker or large Erlenmeyer flask.