5 Gallon Brewing Process

Some notes on the proposed 5 gallon brewing process for the office.

Local ingredients: Brew Bristol

Mash

• Heat sparge water: 3.4 ml per gram of grain (e.g. 3.765kg grain = 12.8L)
• Prepare grains in grain bag
• Once at strike temperature 70C
• Heat off
• Add grain bag
• Secure grain bag (string/bungee?), lid, cover with towel
• Wait 1.5 hours

Sparge

Interestingly a cold water sparge should be ok.

• Lift grain bag to agitate
• Add cold water to make boil volume
• Lift and drip drain grain bag

Boil

• Start boiler
• Wait 1.5 hours apx
• Maintain rolling boil for boil time (1 hour typical)
• Add hops at intervals

Cool

• Setup buckets with cooling water (4 buckets = 2 cold supply, 2 on hot water drain)
• Start cooling siphon before adding wort chiller to wort
• Immerse wort chiller to wort
• Maintain cooling water as required
• Approximately 30 minutes to reach 30C

Ferment

• Drain brew by dropping from height into fermentation bucket
• Add yeast
• Setup bung & airlock
• Seal lid

That should be the complete process to get a brew started.

BruPacks Boiler Test

23rd June 2015

We needed to perform a test boil with the newly acquired boiler to find out the general timings of the boiler and test that it can actually perform the task we needed it to.

Image from Brupacks website

Our intention is to mash, sparge and boil in this boiler which will make it an excellent addition to the office brewing setup.

The timings collected from the test run were as follows:

• 10:05 filling started
• 10:13 filling complete, boil started
• 11:24 close enough to full boil, cooling started
• 12:06 cooling complete

That gives us approximately 1.5 hours to boil, 0.5 hours to cool which is quite a managable figure for a 5 gallon brew.

The cooling setup uses a copper immersion wort chiller

We found the siphon action between two brew buckets, refilling the cold supply and emptying the hot worked very nicely.

API/SDK Design Notes

Some excellent resources which detail API design:

• Joshua Bloch on API Design, PDF Video
• Joel on Software, 3 rules of API design
• Scott Meyers, The Most Important Design Guideline

A software development kit (SDK or "devkit") is typically a set of software development tools that allows the creation of applications for a certain software package, software framework, hardware platform, computer system, video game console, operating system, or similar development platform.

To create applications you have to download this software development kit. For example if you want to create an Android app you require a SDK with java programming, for iOS apps you require an iOS SDK with swift language, and to develop MS Windows apps you require the .net language.