Bottom ice (drinking glass)

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In the case of drinking glasses (especially beakers such as tumblers and long drink glasses ) and other glass vessels, ground ice (less common ice foot ) refers to a comparatively thick and heavily pronounced base made of solid glass .

Using a lot of ground ice makes a glass more stable and does not break easily when placed on hard surfaces. Another reason for using ground ice is the high weight of glass: Ordinary soda-lime glass has a density of around 2.5 g / cm 3, two and a half times greater than water , while high-quality glasses are even significantly higher (minimum Density for lead crystal : 2.9 g / cm 3 ). Glasses with a lot of bottom ice therefore look particularly heavy and of high quality, and tall long drink glasses with a lot of bottom ice do not fall over so easily due to the low center of gravity. If the glasses are pre-cooled, as is customary when preparing cocktails , strong ground ice also acts as an additional cold store, but unlike ice cubes, it does not give off melt water.

  • Shot glass in "ice look" with thick bottom ice

  • Long drink glass with bottom ice

  • heavy aperitif glass with strongly pronounced bottom ice

  • Carafe with bottom ice

  • thin-walled beaker with little bottom ice

Individual evidence

  1. ↑ Cf. Ellinor Hoffmann: Dictionary for the glass industry / specialist dictionary for the glass industry. Springer-Verlag, 2013, ISBN 978-3-642-92860-4 ( limited preview in Google book search).
  2. ↑ AK Kott: On the load-bearing and residual load-bearing behavior of laminated safety glass. Dissertation, ETH Zurich 2006, pp. 7 and 13.
  3. ↑ Konrad Bergmeister , Johann-Dietrich Wörner, Frank Fingerloos: Concrete Calendar 2009 / Part 1 and Part 2: Focus: Structural engineering ... John Wiley & Sons, 2008, ISBN 3-433-01854-5 , p. 403 ( limited preview in Google Book search).
  4. ↑ Crystal Glass Labeling Act (PDF file) Law on the labeling of lead crystal and crystal glass of June 25, 1971 ( Federal Law Gazette I p. 857 ), last amended by Article 355 of the Ordinance of August 31, 2015 ( Federal Law Gazette I p. 1474 ), here : § 2 Definitions.