Homebrewing - Home Brewers Blog

West Coast Brewer Home Brewing Blog

Tag: lager

New Homebreiwng Device Called The Trub Trapper

Trub Trapper Homebrewing Screen

Trub Trapper Homebrewing Screen

 

Every now and then a new homebrewing product comes out that catches my eye and I say, I can not believe nobody had thought of that. The Trub Trapper is one of those home brewing equipment idea.

 

So what is the Trub Trapper and why is it so great? Well, lets start by talking a little about trub first. Trub is that thick sludge left at the bottom of your boil kettle after you have transferred your wort to the fermenter.  It is a combination of hops, compounds, proteins and solids left over after the boil. The problem is that it is very difficult to stop the trub from passing in to your fermenter. Trub formed during the boil can adversely affect fermentation and produce undesirable flavors and haze in your finished beer. It is something that you want to avoid if at all possible and I will explain further in a couple of paragraphs. You worked to remove these unwanted compounds and byproducts during the boil so you do not want to allow them in your homebrewing fermenter.

 

How does the trub trapper work? Well, it is pretty simple really, you place the TrubTrapper in the bottom of your home brewing kettle so that your brew kettle dip tube is outside the tub trapper ring before you fill your boil kettle. You conduct your boil as you normally would and then whirlpool post boil.  Let the wort settle for approximately 10 minutes and you are ready to go. It is that simple.  The high temperature soft silicone gasket and overall weight of the TrubTrapper will keep it in place during the boil and whirlpool so there is no need to re-position, or try and unclog anything.  A small amount of the overall trub will settle outside the trub trapper filter ring during the whirlpool process, and a portion of that will flow in to the fermenter but the grand majority of the trub will be trapped inside the trub trapper which is where you want it.

 

The TrubTrapper

The TrubTrapper

 

Why is trub transferring in to your fermenter such a bad thing? Well, excessive trub can coat yeast membranes impeding transport in and out of the cells which encourages metabolic by-products.  Not to mention fine particulates in trub can lead to haze formation in your finished beer. Trub can also be responsible for head retention issues, impact aroma, flavor stability and off flavors such as sulfur, harsh bitterness and soapy notes.  If you have been experiencing any of this in your home brew then the trub trapper may be exactly what you are looking for.

 

If you like to reuse your homebrewing yeast, the trub trapper can help with that too. Excessive trub affects your ability to harvest and re-use yeast effectively and efficiently.  High trub levels make it more difficult to collect and clean the yeast and poor yeast health caused by excessive trub eliminates the ability for you to maintain the quality of your yeast which impacts the quality of your beer!

 

So how much is the trub trapper and where can I get it? It runs for about $50 and you can find the TrubTrapper here!

Yeast

Brewing yeast strains are unicellular fungi that convert simple sugars into approximately equal parts of alcohol and carbon dioxide during the fermentation process. There are two main types of beer yeast varieties: saccharomyces cerevisiae, which is a top fermenting ale yeast, and saccharomyces pastorianusis, a bottom fermenting lager yeast.

 

 

 

A wide selection of home brewing ale and lager yeast can be found here:

Home Brewing Yeast

 

 

Below is an image of a fermenting Flanders Red Ale style beer in two glass carboys with a flask of yeast in front of them:

Yeast and Fermenting Beer

Yeast and Fermenting Beer

Lager

Lagers are beers that are fermented using a bottom fermenting yeast. These yeasts are slow fermenting and they require a lower temperature when compared to ales. Depending on the yeast strain, a lager typically conducts a primary fermentation at a temperature range between 40° F and 55° F.

Lager is the German word for storage, and lagers generally have their secondary fermentation temperature reduced and may need to condition for several months before they are considered finished.

Draught Beer or Draft Beer

Draught beer or draft beer is beer that is served via pressurized line or hand pump/beer engine from a holding tank, barrel, keg, or cask to the glass as opposed to being poured from a bottle or can.

Bottom Fermenting

Bottom fermentation or bottom fermenting is a term that describes the manner in which lager yeast tends to collect on the bottom of the fermenter and conducts its fermentation, as opposed to top fermenting ale yeast, which conducts most of its fermentation on the top of the beer.  Bottom fermenting lager yeast strains prefer a low fermentation temperature range that is typically between 40° F and 55° F, but varies between strains.

%d bloggers like this: