E-61, what is it?

EliotR

Everywhere I look, people are talking about an E-61 Group handle etc...  Whats E-61?  A measurement is my guess, can anyone clarify this for me please...???  Is this the "commercial" size group handle?

Reschsmooth

Have a read of this - should clear some things up http://www.wholelattelove.com/articles.cfm?articleID=89 (Admin can delete this response if it is not appropriate) Cheers P

john

After checking out the above post, the following refers to the history behing E-61. E-61 relates to the name of a particular style of group head. The E is for eclipse (total solar eclipse 1961) 61 is for the year 1961 The following are a few paragraphs from the recently published espresso coffee training manual, Barista Techniques. Courtesy coffeetraining.com The heat exchanger In 1950, Beniamino Rota lodged a patent for the Condor machine. In inventing this machine, he overcame the problem of the simultaneous drop in water temperature and pressure when cold water passed into the boiler to refill it. In his machine, which used tap pressure or an electric pump operated by pressing a foot switch, the water was forced through a heat exchanger in the boiler

EliotR

Thanks guys!  ;D  I understand now, I hope, LOL