Partial Mashing
Since I have only done one partial mash in the past, I thought I would brush up on the technique. Here are my top 10 points I can pass on to would be partial mashers:
- Get your hands on the October 2006 issue of BYO magazine. It has a great article on countertop partial mashing.
- I bought a picnic cooler to mash in. You don’t need one, but it helps to keep the temperature of your mash steady.
- I haven’t modified the cooler to make it easy to separate the wort from the grain like a false bottom or a manifold, so I am just going to use a grain bag. I am going to keep the bag as loose as possible to ensure I get a good soak.
- There are a few different ratios of hot water to grain out there. I am going to use Chris Colby’s 1.375 quarts to every pound of grain.
- I know I should heat up more water than I need and I should heat it 11-15 degrees hotter than my mash temperature.
- After mashing for an hour, I will open the spigot and let the wort drain into a large pitcher. Then I will pour it back over the grains to recirculate it since the first runnings are cloudy and probably full of husks.
- Then, I will drain the cooler into my pitcher again until all the sweet, sweet wort has flowed out of the cooler
- I will then pour the wort gently into my brew pot.
- After draining the cooler, I will fill it up again with water that will settle to 170 F and I will let it sit there for 5 minutes and then drain it again.
- Not sure how much water I will need to add to the wort to get to total of 6 gallons to brew (I will need 6 gallons for the boil to end up with 5 gallons in the fermenter), but that amount is what I will put in my kettle.
If I think of other partial mashing tips, I will post them. I probably will have a bunch after my brew sessions.



