Beaker

August 5, 2013

beaker

Beakers are common lab glassware use to mix, stir, or heat liquids.  They’re typically cylindrical in shape with a small spout at the top to facilitate pouring.

Though markings on the side indicate volume, there are much better glassware pieces to measure liquids; graduated cylinders and volumetric flasks are specifically designed for accurate measurement of volume.

This beaker is made with a borosilicate glass with the tradename of Pyrex (as evidenced by the “PYREX” on the side”).  Glasses like these have a very low thermal expansivity making them ideal for applying heat sources.  Other glasses that expand with temperature run the risk of cracking or breaking when the heat source is too localized or when heating or cooling occurs too rapidly.

2 Comments

  1. Thane says:

    Okay, so this one isn’t so food related–unless your culinary experimentation is drastically more experimental than the average cook.

    This beaker illustration and a couple of subsequent ones are part of a greater collection of illustrations that speak on the role of gluten in baking.

    Stay tuned!

  2. Thane says:

    UPDATE: it’s been posted: my video “Gluten in the Baking Process” here: http://www.better-engineers.com/archives/food-processing/77-gluten-in-the-baking-process . It’s featured by the good people at Better Engineers, an online magazine for engineers and scientists.

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