Dark Rock The Bosses Boss – All Grain Kit

From: £30.99

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 – All Grain Kit

Dark Rock The Bosses Boss - All GrainThe Bosses Boss Double IPA 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 the freshest premium malted grains. You will also need to add Brewing Sugar (not supplied) to make to 7.7% ABV. 

This top of the range kit will produce a beer that you can be proud of. No compromise has been made on quality and only the freshest hops and malts have been selected. The kit also includes a sachet of Pure Brew water conditioner and yeast enhancer to ensure a pure commercial taste is achieved. Starbrite finings are also included. The kit is suitable for vegans as it contains no animal-based products.

What is the Dark Rock Bohemian Range?

The Bohemian 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 customer 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!

Each Dark Rock kit is carefully researched and developed by commercial brewers with extensive knowledge and a passion for craft beers and real ales. Dark Rock Kits enable you to produce commercial quality beers, all within the comfort of your own home. Malts and hops are added at controlled stages of the brewing process to provide rich aromas and depths of flavour which are simply stunning.

What makes the Dark Rock All-Grain range so special?

Dark Rock Brewing’s All-Grain Beer Kits provide everything you need to make a superb ale.  All-grain brewing is a rewarding process, which puts you in full control of your brewing. It takes a little longer than making a standard beer kit or partial mash but the results are absolutely stunning. All-grain mash brewing is great fun and really allows you to develop the necessary skills to master your craft. We use commercial-quality malt and hops in each kit, placing a strong emphasis on freshness.

Dark Rock’s all-Grain Mash Kits represent fantastic value too. You only buy the exact amount of ingredients you need so there is no waste. Unlike making up your own recipe you will not have leftover quantities. With all grain brewing, it is important not to keep stocks of grains and particularly hops at home for long periods. The quality deteriorates quickly. Therefore, it does not make sense to buy larger quantities of grains and hops than you actually need.

We weigh Dark Rock All-Grain Kits to precise quantities required for each brew, ensuring the freshest ingredients and excellent value. We store hops in temperature-controlled rooms and vacuum-pack them immediately upon opening. This ensures the optimum quality of your brew.

What’s Included?

  • 6.2 Kg Malt Grains
  • Choice of Yeast
  • Hop Pellets
  • Pure Brew (water treatment and nutrient)
  • Britewort clarifier
  • Starbrite Beer Finings (Vegan-Friendly)
  • Fermenter / keg ID sticker
  • Full instructions

Allergy Advice: Includes barley and other cereals, containing gluten


  • Makes: 40 pints / 5 gallons
  • Starting Gravity: 1072 (approx)
  • Target Finishing Gravity: 1014
  • ABV: 7.7% (approx)
  • Bitterness: 100 IBU
  • Colour: 12 EBC
  • Fermentation time: 10-14 days approx
  • Conditioning time: 4 weeks minimum (it will mature further if left longer)


Malts: Pale Malt, Oats, Wheat Malt
Hops: Simcoe, Amarillo, Citra
Yeast: Choice of Yeast
Extras: Britewort, Starbrite Beer Finings, Pure Brew

What Equipment Do You Need?

Basic beer making equipment (5g fermenter, airlock, syphon tube with sediment trap, hydrometer, Suresan sanitiser, bottles or barrel). These are available under the starter kit section on this website. You will also need specialist equipment to make all grain beers.

The process involves three stages. The first stage is mashing. Your mash equipment will need to maintain the grains and water at a constant temperature for an hour (usually 66C). This is important as only slight variations in temperature can affect the taste of the final beer. The second part of the process is sparging. This involves rinsing the grains with water slightly hotter than the mash (77C). Finally, you will need to boil the wort for around 70 minutes and then cool it to fermentation temperature as fast as possible. From this point, the fermentation process is similar to standard kits. You can use numerous techniques and equipment styles to make full mash beers.

In the past, brewers used a floating mash tun and insulated ice box as the most basic method. Alternatively, they used a Pico style Electrim Bin. Whilst these are still available, there are now easy to use all-grain brewing systems available. The initial cost is higher but these systems are superb and allow you to achieve bang on results every time. They also cut down the time that you have to be present during the process. All grain systems are so effective that most commercial breweries use them for testing experimental recipes prior to full-blown scale-ups.


We highly recommend the Grainfather brewing system. You can expand this system as your skills develop, to include conical temperature-controlled fermenters, sparge water heaters, and even an integrated Glycol Chiller. This ensures precise temperatures down to 4 degrees centigrade, which is useful for lager production and summer brewing. A wide range of all-grain brewing equipment is available on our website and we are always available to offer advice.


This kit includes a sachet of Pure Brew to achieve a commercial quality. 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 treats brewing water, eliminating problems that Chlorine and Chloramine create. These problems can result in a medicinal or “homebrew” taste.

Overlooking the condition of brewing water can impact results, even though it’s critical to achieving optimum results. 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.

You could consider investing in a metal hop spider to effectively manage hop additions into the boiling process. The hop spider would sit inside your boiler and allow you to drop hops into the boil in a controlled way. Hop Spiders allow hops to boil with more free flow space around them. You can easily clean them and re-use them over and over again. They also prevent hop sediment (known as trub) from clogging up pumping systems when using all in one brewing equipment.

Additional information

Weight 6 kg

Beer strength

7.1% – 8%

Beer style

6 reviews for Dark Rock The Bosses Boss – All Grain Kit

5.0 out of 5 stars (based on 6 reviews)
Very good0%


22 August 2023

This was my 1st all grain brew on my new grainfather system and thanks to the advice from Dark Rock all went really well! As it says its flavor is balanced, and with adding the Brewing Sugar it did make it up to around 7.7% ABV. Instructions were easy to follow- had to re read a few times but now has me hooked!!

Carl D
22 August 2023

This is a well balanced beer that belies the high alcohol content. I used the Grainfather to brew this and got a final ABV of 8%. The high note is citrus, with a strong malt backbone. This is a great kit and I’d recommend it to anyone who wants a break from very bitter IPAs.

22 August 2023

Brewed this 3 times and all were excellent. First was the full recipe, second was without finings, and third was without the additional sugar for lower strength. All worked well, best maybe without sugar and ordered number 4 today.

22 August 2023

Long time brewer, recent all grain brewer. I have made some really nice beers in the last 12 months from grain, but this one is another level. My favourite beer has been Life and Death by vocation breweries until I made this. Wow its genuinely nicer than anything I’ve brewed before of anything I’ve tried for that matter. I was a bit sceptical of the extra few quid grain kits cost from Dark Rock, but the pure brew and finings seem to do the job, it was very drinkable from the second I kegged it and can only imagine it will improve with time.. Top job guys.

22 August 2023

A stunning beer, really happy, great taste and colour. My favourite beer was the NEIPA but this is even better, really recommended if you like very hoppy beers, aromatic beers with a really smooth taste. Superb summer beer.



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