This spring, I was delighted to see my hometown, which lurks on the western shore of Lake Michigan between Milwaukee and Chicago, take a page from those metropolitan areas and add an outdoor biergarten. Set up in a formerly languishing picnic pavilion in a county park, the biergarten is a family-friendly place to get a drink or a bite to eat. Located near one of the county’s dog parks, a golf course and a university campus, it seems well-positioned to succeed, and early response to it has been strong.
I was reminded of our new biergarten (and how much I like it) while reading about Good Nature Brewing in “Cooling the Brew Starts During Fermentation,” an article by Angela Sampaio of GF Piping Systems. A farm brewery in New York state, Good Nature Brewing seized the opportunity when a change in the state regulations allowed farm breweries to serve beer by the glass without having to get separate permitting. When the brewer outgrew its taproom and original production facility, the owners decided to build a single facility on 5.25 acres. With new taproom and VIP area overlooking the brewing facility, a good looking and effective cooling system was essential. Good Nature tapped GF Piping, based in part on recommendations from fellow brewers who recommended the system. The preinsulated system helps maintain the beers at the proper temperature from kettle to tap.
Maintaining tight control on the temperature of the manufactured product is not only important in the beverage market. Many food products, including infant food, require exacting production. For a European maker of infant food, part of Danone Group, the essential process cooling is provided by bio-based propanediol heat transfer fluids. Laurie Kronenberg of DuPont Tate & Lyle Bio Products Co. LLC explains how the thermal fluid helped Blédina reduce energy consumption and strive toward its goal of zero carbon footprint across its entire value chain.
Heat transfer fluids also are the focus of “Which to Use: Ethylene or Propylene Glycol?” by Abigail Houghton of Houghton Chemical Corp. As Houghton notes, the most important physical properties of ethylene and propylene glycol are vapor pressure, boiling points and their ability to lower the freeze point of water. Used in solution with nature’s most effective heat transfer fluid — water — glycol-based fluids serve an effective role in many process cooling applications.