It’s hard to believe it was barely a year ago that my husband and I brewed our first batch of beer. What an adventure it’s been! Two batches of porter, an imperial pale ale, the purchase of an extra-large pot, and a homemade wort chiller later, we finally felt ready to take the next step: all-grain brewing.
For our first few batches of homebrew, we were working with malt extracts (essentially, concentrated beer juice) supplemented with a small amount of specialty grains for extra nuance and flavor. Moving to all-grain brewing meant cutting ourselves off from that extract and doing it all ourselves.
It’s kind of like making tea. A whole lot of tea. In a very large pot. My husband and I found a recipe for a basic amber ale and worked with our local homebrew store to buy the 14 pounds of grain we would need. These grains got steeped (“mashed”) in hot water in our shiny new 9-gallon pot at a steady temperature of 150° - 155° in order to extract the sugars from the grains.
Once we strained out the sugary liquid (a process called “sparging”), the rest of the process was exactly like what we’d done before. We boiled the liquid (now called “wort”) and added hops at various intervals to further flavor our beer. We got the wort cooled down, added the yeast, and let it ferment away.
Our biggest challenges were keeping the temperature steady while we were steeping the grains and then getting the wort chilled down enough before adding the yeast. This was a lot more liquid than we were used to dealing with - nearly 5 gallons for the mash plus another 4 gallons for the sparging and the boil. It was a lot harder to get the temperature of the mash where we wanted it. We kept shooting over or under our 152° mark, and ultimately ended up letting it simmer at a slightly higher than recommended temperature. We’re thinking that we’ll get better at this temperature control with time.
For the cooling step, a friend of ours and fellow homebrewer had gifted us with a homemade wort chiller. This is a coil of copper tubing that sits right inside the brew pot with the wort. We connected the chiller to our kitchen faucet with plastic tubes and ran cold water through the system to cool down the wort. Our tap water isn’t terribly cold so this took a little longer than the fifteen minute ideal, but still managed to cool down the entire pot of liquid very efficiently. Heat transfer rules!
We were on pins and needles waiting to taste this first batch of all-grain beer, and just cracked the first bottle over the weekend. It’s not half bad! The beer ended up tasting more hoppy and less malty than expected - more like a pale ale than an amber. This is probably due to our high-temperature mashing, which doesn’t extract as much sugar. But it’s definitely drinkable, and it has good color, good head retention, and a nicely creamy mouthfeel.
I can’t wait to try this again! Any advice for next time?
Related: What's the Deal with Bottle Conditioned Beers?
(Image: Emma Christensen)
Straw Mat from The ...

Use an igloo cooler as your mash/lauter tun. This makes hitting your mash temp much easier.
A 10 gal Igloo cooler with a false bottom is your best bet for a mash tun. The cooler keeps the temp constant and the false bottom prevents stuck sparges as well as tending to give higher efficiency. Get a hydrometer so that you will know when you have hit your target gravity. I suggest you get a copy of the Beersmith software which is very useful in keeping track of your grain bill, calculating your bitterness and color. Well worth the $20 or so bux.
Congrats on your first all grain beer! Also, don't throw out the soaked grain. I have been using it in breads and it imarts an amazing amount of flavor.
Pahiker6 or FlatFifthFury - Could you explain how to use an igloo cooler as a mash/lauter tun? I've read about doing that, but never really understood it. How is the mash heated? How does it stay hot? And then how do you sparge the liquid out?
Btw, we did this first all-grain batch by mashing/sparging in our 9 gallon pot with a false bottom and a spigot. We drained the wort out about half way, and then poured some hot water over the grains from the top to keep them from getting stuck.
Thanks for the tip on the Beersmith software - I'll look into that! And yes, next time I plan to save some of the grains for making bread. They start going sour SO FAST, don't they?!
Look up- how to make your own wort chiller with copper tubing and check out making a heat stick to heat as much water as you need!
Emma, check out this website:
http://hbd.org/cascade/dennybrew/
Basically you heat your water in your kettle, add it to the cooler, then add your grain to the cooler. If you do the calculations right, you shouldn't be more than a degree or two off. As recommended elsewhere, Beersmith is your friend. Or you can find some online calculators that will calculate your strike temp based on air temp, grain temp, cooler temp, etc.
Since you have a false bottom for your kettle, you can just use the cooler to mash your grains in. After mashing, pour the entire mix into the kettle and use the false bottom to drain. This will create an issue on where to drain your runnings into, however. So forget that suggestion. Just convert the cooler into a mash/lauter tun (MLT). It doesn't cost much to do the conversion. Some people will insist that you use copper or pvc pipe. I just used a stainless steel braid from some pipe hose. Denny's site will give some more detail.
I used a cooler for my first year, but I don't recommend it. Eventually, it starts to warp. Also, pouring 160 degree water into it...I don't even want to know what sort of stuff leached into my beer.
I recently switched to a pot with a false bottom. I had some issues with temperature as well, but it was pretty easily solved. I built a plywood box that fits over the mash tun, and just lift it off whenever I need to stir or check the ph, etc. It's a little ghetto, but it totally worked (I lost 2 degrees in one hour, which is about the same as when I used a cooler). I'm going to add a little insulation inside the box for when I brew outdoors in the winter.
@alagwc - How exactly to you use the soaked grain in bread making? My husband steeps grain for his beer and I'm getting into bread making, so this might be a good match-up!
I use a big mash kettle with a false bottom. To maintain a steady mash temp, I just pop the (at temp) kettle in an oven also preheated to the same temp. This gives much better control than insulating or trying to maintain temp with occasional bottom heat.
I remove all but one oven rack and put it in the lowest position, which gives plenty of room for my immense kettle.
The cooler works quite well actually. I suggest you get either: "How To Brew" by John Palmer or "The Complete Joy Of Homebrewing" by Charlie Papazian. They will explain all that you need to know for all grain as well as other aspects of brewing. They are great resources.
1-How to Brew-great book.
A cooler with a manifold or a stainless steel braid is the way to go. My setup was quite cheap and works great. The move to all grain has made all of my beer sooo much better. Totally a worthwhile investment.
http://zombiebeergeeks.blogspot.com/2010/03/building-mash-tun.html