Dark Rock The Bosses Boss – Part Grain Kit

From: £36.70

The Bosses Boss is a beer with attitude. Big citrus flavours punch through from the freshest Citra and Simcoe hops, balanced with a malty richness.

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Dark Rock The Bosses Boss – Part Grain Kit

Dark Rock The Bosses Boss - Part GrainThe Bosses Boss Double Hopped DIPA is a beer with attitude. Also known as an Imperial IPA, this full-on American-style beer is the superpower of pale ales. Big citrus flavours punch through from the freshest vacuum-packed Citra and Simcoe hops. This intense flavour is balanced with a malty richness which is provided from commercial-grade premium malt extract coupled with the freshest grains. You will also need to add Brewing Sugar (not supplied) to make to 6.7% ABV.

Bohemian Series

This range is quirky and experimental. It mirrors the current commercial craft beer trend for creating off-the-wall styles and flavours that do not conform to traditional standards. The range includes special limited editions in order to keep things lively and interesting. All kits have been thoroughly researched and pilot-tested by selected customers prior to being launched. Expect some explosive strengths, small batch quantities, and wacky flavour editions that shouldn’t work, but do! Have fun with the Bohemian range and release the “Hipster” in you!

What Makes Dark Rock Part Grain Kits So Special?

Part-grain beer kits are an excellent way to take your brewing to the next level. Brewing takes a little longer using this method, but the results are well worth it. With our friendly expert guidance, these kits are suitable for beginners as well as more experienced brewers. All you need extra is a pan and a thermometer. By adding a ‘mini-mash’ to the malt extract brewing technique, using different varieties of malt and hops, you can create more complex flavoursome beers according to your taste.

Dark Rock provides the ultimate range of part-grain kits. Our expert knowledge of brewing combined with sourcing only the finest quality ingredients means Dark Rock part grain kits will enable you to brew exceptional beer that will rival any you can buy in pubs and shops.

Dark Rock kits combine 3kg of the finest quality malt extract with a blend of premium malt grains and hops sourced by us from around the world. We believe our kits are the best on the market and feedback from our many satisfied customers backs this up.

All ingredients are bought and stored fresh and weighed into individual bags. Our hops are vacuum-packed in nitrogen-flushed foil bags to produce the maximum flavour and aromas.

Whatever your brewing experience, a part grain kit is a great choice and requires minimal investment in equipment. With such a wide range of beer styles to choose from, there is sure to be a beer for you, whether it is a tropical pale ale, a rich stout, or a refreshing pilsner.

Kit Content 

  • 3kg Brewery Quality Liquid Malt Extract
  • Premium Brewing Yeast
  • Malt Grains
  • Hop Pellets
  • Pure Brew (water treatment and nutrient)
  • Britewort clarifier
  • Muslin straining bag
  • Starbrite Beer Finings (Vegan-Friendly)
  • Fermenter / keg ID sticker
  • Full instructions

Allergy Advice: includes barley and other Cereals, containing gluten

Equipment Needed

Basic beer making equipment:

  • 25 Litre Fermenter
  • Airlock
  • Syphon Kit
  • Hydrometer
  • Thermometer
  • Sanitiser
  • Mixing Paddle
  • Bottles or Barrel

You will also need a boiling pan (at least 15-litre capacity)


  • Makes: 40 pints / 5 gallons
  • ABV Approx: 6.7%
  • Target Finishing Gravity: 1.011 (approx)
  • Fermentation time: 7-14 days approx
  • Conditioning time: 2 weeks minimum (it will mature further if left longer)


This kit includes a sachet of Pure Brew to ensure a commercial-quality outcome. Pure Brew is a professional beer enhancer. It feeds the yeast with essential nutrients, which supercharge the fermentation and support yeast development (even in limited oxygen conditions). Pure Brew also treats brewing water to eliminate problems caused by Chlorine and Chloramine (which can create a medicinal or as it is sometimes referred to, a “homebrew” taste) The condition of brewing water is critical to achieving optimum results but this important area is often overlooked. By using Pure Brew, you can effectively and easily condition brewing water, and maximise effective fermentation. We strongly recommend using Pure Brew with all of your beers to improve their quality.

The addition of beer finings will improve the final quality of your beers. This kit includes Starbrite finings. They will help your beer to clear quickly and the sediment will be more likely to stay at the bottom of bottles or barrels. If you are using Corny Kegs then it is important to clear the beer as much as possible before kegging. Beer Finings will promote a faster and more efficient fall out of sediment and haze particles before kegging. Harris Starbrite is a highly effective vegan-friendly beer fining, which is rapidly becoming a firm favourite with craft brewers. It is suitable for all beers.

This kit includes a muslin bag. You could consider investing in a metal hop spider to upgrade your equipment. The hop spider would sit inside your boiling pan and allow you to drop hops into the pan in a controlled way. Hop Spiders allow hops to boil with more free-flow space around them. They are easily cleaned and can be reused repeatedly.


Additional information

Weight 5.5 kg

Beer strength

6.1% – 7%

Beer style

12 reviews for Dark Rock The Bosses Boss – Part Grain Kit

5.0 out of 5 stars (based on 12 reviews)
Very good0%


22 August 2023

It turned out great, probably the best I have ever done.

22 August 2023

This is the best beer I have ever tried, it has such a wonderful clean taste and aroma. The hops included are the best I have ever tried and make this a top quality American IPA. I’ve tried a lot of beer kits in my time but this is by far the best beer i’ve tried. A must try for any craft beer lover!

22 August 2023

This kit is brilliant! The best beer i’ve ever tried, well worth the money!

22 August 2023

Really good kit, top quality beer at the end of it. Great hops and excellent extract. Easily worth the money for the kit.

22 August 2023

I’ve just taken the 1st sip of this beer, and wow, if you like grapefruit you’ll love this, this is the cleanest tasting home brew I’ve ever made, absolutely love it



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