It is important that a brewer regularly check the fermentability of the wort produced. A very simple and effective method is a forced fermentation test. This test can be performed by any brewer with or without a lab. The forced fermentation test consists of aseptically pulling a wort sample (post heat-exchanger) into a sterile sample container and inoculating with a very high yeast cell count (Dried yeast works fine). Agitate the container often. Check the gravity after 36-48 hours to determine terminal gravity. This test will give you a good idea of where your fermentation should finish. If your main fermentation does not reach the same level as your forced ferment, you know you have a problem in the fermenter (pitch rate, temperature, oxygenation). If both your main fermentation and the forced ferment finish out of spec (too high or too low), you know that you have a problem on the brewing side (mash temperature, times, crush, ingredients).
Shared: Refractometers
With careful use, a 0–30 Brix refractometer is precise to within 0.2–0.3 Brix. As such, it is less precise than a good hydrometer. However, it can provide a quick measurement of gravity to within about one “gravity point” at times when cooling the wort for a hydrometer sample would take too much time.
Shared: The “No Nitrites Added” Hoax
The fact is, most nitrate we consume comes from vegetables. Nitrate we consume coverts to nitrite in our body, which is a anti-microbial agent in our guts. Sodium nitrite in bacon cures the bacon (more info in my safety concerns for charcutepaloozians) and then converts to nitric oxide, so, while I’m not chemist, I have heard others suggest that you’re not actually consuming any nitrite by the time the bacon gets to you. Again, almost all the nitrate and nitrite in your body comes from veggies. It’s an anti-oxidant. Studies are coming out now saying it’s good for the heart.
A study in the Journal of Food Protection put it this way: “Since 93% of ingested nitrite comes from normal metabolic sources, if nitrite caused cancers or was a reproductive toxicant, it would imply that humans have a major design flaw.”
Shared: Pacific Coast Highway
Pacific Coast Highway by Jamie Beck on From Me To You:
Shared: It’s always been this way
As soon as you accept that just about everything in our created world is only a few generations old, it makes it a lot easier to deal with the fact that the assumptions we make about the future are generally wrong, and that the stress we have over change is completely wasted.
Shared: An Interview with Brewer Dan Morey
An Interview with Brewer Dan Morey
I got to admit, I was shocked when I found out “real” brewing software was using the “Morey Equation.” At the time was writing my own brewing software. The original version was in Quick Basic and was really limited. I decided [I] wanted something that was executable and had editable databases, so I went to work on transferring it to Turbo Pascal. One area I was really unhappy with was color estimation. By using just the MCU value I felt my beers were usually lighter than the prediction.
Shared: Further adventures in Homebrewing
Further adventures in Homebrewing
Making beer is this wonderful intersection of science and art and cooking that is more fun and rewarding than I ever expected it to be. It’s so easy, and so rewarding, if you like art and science and cooking (and beer) you should totally make some of your own.
Shared: Lessons according to salt
Think about the classic white shaker on every restaurant table. Most of the time we look right past it or ignore the invisible flavor in the small packets stacked next to the pepper. But stop for a moment, and consider salt’s history and presence — how far it traveled, what form it originally started in, how many people were involved just to get it to your table. It gets more interesting. Salt has inspired wars, funded the Great Wall of China, it’s been considered divine, it’s the name of cities, it has been used as currency. Today, it has over 14,000 uses and is considered a luxury in some parts of the world, while Americans just consume about a teaspoon and a half a day.
Shared: The Dark Secrets of Stout
The most famous stout in the world uses a liquid extract, called Guinness Flavor Essence (GFE), to convert pale lagers and ales brewed by licensed Guinness producers around the world into Guinness Foreign Stout. GFE, reportedly a mixture of roasted barley extract and special beer, is only made in Dublin and is used by breweries in the Caribbean, Africa and Asia.
Shared: What can 1 gallon carboys be used for?
What can 1 gallon carboys be used for?
When I drain my kettle after whirlpooling, there’s always a gallon or two of gunk down there. I siphon it into a one gallon jug or two, pop it in the fridge, let the gunk settle out, then use the wort for starters. You can freeze it in ziploc bags or chiney foo soup containers. I also use my one gallon jugs for starters, test batches, or experiments with oak, fruit, or dry hops.