Monday, 10 August 2015

Making a Brewers Invert

Reading through the numerous recipes on the Shut up about the Barclay Perkins let's brew blog , I decided it was time to make a brewers invert. Many of the old British style recipes of bitters and milds call for a brewers invert. I found the procedure on the unholymess blog.
The procedure seems quite straightforward. You just need to pick the right ingredients, have some patience and time.
The main ingredient is Cane sugar. I picked some up from the local health store. Demerara sugar also works. I picked some of that up from a local brewing supply store. I remember Demerara being readily available in the supermarket back in the UK. I couldn't find it anywhere here in Canada. Anyway, neither of these sugars are cheap. For my first attempt I used the raw cane sugar. Here's the full list of ingredients taken from the unholymess blog:


  • Sugar in the Raw or other demerara cane sugar
  • 1lb sugar to 1pt of water
  • 1 tsp (5ml) liquid Lactic Acid @ 88% per 2.5lbs of sugar.
  • 1/2 cup (4 fl oz) light corn sugar per 2.5lbs. (helps prevent crystals)
Ingredients: Cane Sugar, lactic acid, corn sugar & water

Process:

  • Heat the water to boiling
  • Heat off, slowly add sugar & dissolve – goes quicker than dumping and stirring
  • Add Lactic
  • Put on Medium-high heat, set candy thermometer alarm for 230F
    • reduce for your stove if you are heating more than 3F/minute
  • Stir occasionally until simmering starts.
  • Once @ 230F, set alarm for 240F, slowly reduce heat to keep temp stable
    • easiest is to slowly ramp temp up to 240F. There is so much thermal mass, that once you go over it is very tough to get the temp down.
  • As alarm goes off @ 240F, reduce heat to keep 240F. It is ok to hit 245F, but keep under 250F.
    • low & slow will prevent any burning and associated flavors