Sunday, 2 January 2022

KegLand BrewZilla 3.1.1 - Review

After over a year of ownership of our KegLand BrewZilla 3.1.1, and with the impending release of the next iteration, the BrewZilla Gen 4, we wanted to do an in-depth review of our experience with the 3.1.1 version after a number of successful brew days.

The BrewZilla 3.1.1 with insulating jacket

Introduction

The BrewZilla is an all-in-one electric beer brewing system - aimed squarely at the homebrewing market. Targeting those who are looking at moving on from extract or "kit and kilo" brewing into the wonderful world of all grain brewing. It can of course still be used for extract or kit and kilo brewing, but it's really designed for brewing all grain. It's available in 35L and 65L versions as well as 240V and 110V powered versions to suit different world wide markets and residential power supplies. This review will be looking at the 240V 35L version.

Standard Inclusions

Out of the box we have everything we need to get brewing. There are, of course, other additional accessories that can be purchased to make things faster, better or more efficient (we'll get to these later). But there was obviously an emphasis from KegLand to keep the price point very sharp, which meant keeping the kit as minimalist as possible. 

The base BrewZilla kit comes with the following;

  • BrewZilla main unit including dual heating elements, built-in recirculation pump and digital display
  • Glass lid
  • Top Screen
  • Malt pipe, handle, bottom mesh screen
  • False bottom
  • Immersion chiller
  • Ball valve tap outlet
  • Recirculation pipe with camlock fitting
  • Recirculation arm

Price

Coming in at under AU$400, we can't complain about the price, and having other add-ons available means it's the perfect gift, as subsequent birthday's, Christmas's, and fathers (or mothers) day presents can be taken care off with other compatible accessories.

Warranty

The BrewZilla comes with a 3 year warranty which is impressive as it's well beyond the standard 12 month warranty on most products. This helps give peace of mind to potential customers, knowing their investment is protected for an extended period of time against any problems that may occur.

Instructions

There are no instructions included in the box which we suspect is most likely another cost (or environment) saving measure, but they are available online from the KegLand website. The instructions cover how to put everything together, but don't really give much of an explanation on how to brew with this thing. Thankfully there's a heap of YouTube videos, Facebook groups and blog sites with detailed instructions to get you going with your first brew. We've also created a Brew Day guide aimed to help new users get started.

Getting Started

Getting underway is as simple as filling the vessel with water, using the embossed graduated markings on the inside for volume measurements. There are both litre and gallon markings to cater for both imperial and metric measuring systems. Then, turn the unit on and set the desired target temperature, enable both heating elements using the dedicated 500W and 1900W switches and away you go. 

Graduated volume markings are visible on the inside - markings are in litres and gallons

Built In Display

The in-built display and controller has the ability to set step timers and more advanced functions for fancy mashes but this isn't something we've ever bothered with using as we just haven't needed to. One handy use case for this (besides step mash functionality) might be set a timer the night before your brew day, so your water is at target mash temperature first thing in the morning ready for your brew day. Adjusting the temperature as you go is easy enough, although this leads us to one of the biggest problems with the 3.1.1 BrewZilla.

BrewZilla 3.1.1 - built in display and control buttons - located at the base of the unit

The display is mounted at the base of the unit as you can see in the picture above. This was perhaps a logical (and economical) place to put it, so all the electronics are hidden and contained together in the base of the unit. However, the location proves to be an ergonomic nightmare, as even reading the display when the unit is situated on the ground requires squatting down on all fours to make the information on screen legible. Regularly checking the display and making adjustments gets old pretty fast and would no doubt prove difficult for those with bad knees or back problems.

Sitting the BrewZilla up on a stand of some sort is a logical workaround, but having it situated too high would make lifting the malt pipe difficult without some kind of pulley system. The display should really be mounted as close to the top of the unit as possible to best overcome these problems.

Malt Pipe

The malt pipe is the steel tube that slides into the main unit and holds the malted grain during the mash. It fits together and slides in easily, but you just need to be aware of where the feet are so they don't catch on the wire rim at the top of the unit (which is used to sit the malt pipe on when sparging). 

BrewZilla 3.1.1 35L Malt Pipe

Our unit came with the fine-mesh bottom screen that sits at the bottom of the malt pipe, which we stopped using after the first brew. From what we understand it isn't included in the BrewZilla kit any more as it's simply not required and is more likely to lead to stuck sparges and stuck mashes.

Overflow Pipe

The built in overflow pipe is another good feature and provides a safety net to ensure that when recirculating using the built-in pump, the dead space underneath the false bottom doesn't run dry which can lead to problems with the pump and the heating elements. 

Mashing with the overflow pipe in place on the BrewZilla 3.1.1

Once you become more comfortable with using the BrewZilla, the overflow pipe can be removed/deleted, by either upgrading to the "Pro Screen" or plugging the hole it screws into the bottom screen using a bolt and nut. We opted for the pro screen after a few brews and haven't looked back as we found the overflow pipe a bit of a nuisance when attempting to stir the grain bed but it's a good thing to use when starting out.

Glass Lid

The glass lid is another decent inclusion with the BrewZilla unit. Being made of glass, it's obviously prone to breaking if it's dropped or mistreated, however it does give you the benefit of being able to see into the BrewZilla when in place during the mash, although it does tend to fog up which can reduce visibility. 

BrewZilla 3.1.1 with glass lid fitted

The black handles that attach are a necessity, as the glass gets pretty hot and slippery when in use, and the round cutout in the centre means you can feed the tube from your recirculation arm back through the lid so you can recirculate whilst mashing with the lid on to help retain heat inside.

There are also 4 clamps equally spaced around the outside of the unit to hold the lid firmly in place.

Height, Footprint & Temperature Management

The tall and narrow design of the BrewZilla means it has a narrow foot print, which is great for storage and homebrewers with limited space, but also means there's a discernible difference in temperature between the bottom of the unit, where the heating elements are, and the top of the grain bed. 

The temperature probe is located at the base of the unit to keep all the electronic components together and because there isn't really anywhere else to put it. In our experience we've found discrepancies of several degrees Celsius when comparing the temperature on the built-in display with a separate thermometer reading from the top of the grain bed. 

Thankfully this can be easily compensated for by adjusting the set temperature of the BrewZilla to be a couple of degrees higher than your target mash temperature. We've also found that patience is required to let the temperature normalize through the unit when making adjustments.

Measuring the temperature with a separate thermometer at the top of the grain bed

Built-In Pump

One of the best features of the BrewZilla has to be the built-in pump. The inlet for the pump is located on the base of the unit (next to the temperature probe) and allows for the wort to be recirculated back to the top of the grain bed which acts as a filter as the wort flows back through it. 

Recirculating aids in increasing efficiency (ie. how much sugar is extracted from your grains), helps regulate water temperature (as the heated water drawn from the bottom is pumped back up to the top), and can also be used to transfer the wort from the BrewZilla to your fermenter. There's also a ball valve control that allows you to easily regulate the flow of the pump, as well as a dedicated switch at the base of the unit to easily turn the pump on and off.

Transferring wort from BrewZilla to fermenter using the built-in pump

The pump outlet has a standard camlock fitting that the included recirculation arm connects into. You can also get other attachments like a whirlpool arm, but we've found the locking arms a little flimsy and can come loose with only the slightest bit of disturbance or pressure on the arm. This is definitely not ideal as this could lead to hot wort spraying from the connection if the pump is on, but can be easily (and cheaply) circumvented by wrapping a looped cable tie over the locking arms to prevent them raising up. Crude, but has worked very well for us.

A looped cable tie helps to secure the camlock fitting locking arms in the down/locked position

Heating Elements

Regulating the temperature can be managed by using the dedicated switches for the 1900W and 500W heating elements. We had good results by having both elements on for heating up to mash or boil temperatures, and using only the 1900W element to maintain mash temperature. This will likely vary for others, depending on other factors such as ambient air temperature and the volume of liquid inside the unit. 

The switches all have splash proof covers as well meaning the inevitable splashes or dreaded boil overs shouldn't cause any problems. We've found the switch location at the bottom of the unit works quite well as they can easily be toggled using your foot, which has proved handy on several occasions when vigorously stirring with an aggressive hot break and needing to quickly kill the heating elements before a boil over occurs.

The heating elements are more than sufficient for full volume boils, but we did notice a surprising improvement in heat up times to mash and boil when using a lower volume and not maxing out the unit. A vigorous rolling boil was also easily achieved by having both heating elements switched on.

Raising the Malt Pipe

At the end of the mash the malt pipe needs to be lifted out and sits on the top of the main unit on a wire support ring. Some care needs to be taken when doing this as the malt pipe needs to be oriented a particular way to ensure the feet on the malt pipe don't catch on the wire support when lifting it out of the boiler.

BrewZilla with the malt pipe raised for sparging

Once lifted out the malt pipe then needs to be rotated so the feet do sit on the wire support which allows for the grain bed to be rinsed in a process called 'sparging'. One complaint we do have with this is the poor malt pipe handle design, which needs to be inserted into two opposing holes at the top of the malt pipe. Our handle only just reaches and has made for some nerve wracking malt pipe extractions. 

The handle has slipped out of these holes on multiple occasions, thankfully before the malt pipe was too high, so splashing was minimal but if this were to happen when the malt pipe was higher up, the splashing of hot wort could be quite dangerous.

In saying that, another thing to be mindful of if stirring the grain bed to help coax water through during sparging is to ensure it doesn't fall back into the boiler from the raised position you can see in the image above. We've had this happen to us once which made quite the mess, but thankfully didn't result in any serious injuries from hot wort splashing everywhere.

Immersion Chiller

The included immersion chiller also does a good job of helping to cool the wort down after the boil. It's made of stainless steel, so not as effective at heat transfer as other materials, such as copper, but we're working to a price point here so it's more than sufficient. 

The biggest bottle neck with this will be your ambient water temperature. We found cooling significantly faster in winter compared to summer, but also netted improvements in cooling time by running the pump with whirlpool arm attachment (available separately), as well as agitating the wort by gently jiggling the immersion chiller up and down.

The BrewZilla stainless steel immersion chiller is a standard inclusion

You also have the option of sitting the immersion chiller in a bucket/esky full of ice, then running the wort through the chiller to cool it down that way - not something we've tried but we've been lead to believe this is possible using the built in pump.

Buyers should also be aware that there are no fittings included to attach anything (like a garden hose) to the immersion chiller. KegLand do sell compression fittings to achieve this, so you'll need to keep this in mind if you're planning on using the chiller. There is of course the option to forego chilling altogether by using the "no chill" method. This is becoming increasingly popular and if you opt for this then the chiller is redundant.

Cleaning

Being made of stainless steel, cleaning the BrewZilla is a breeze. We found hosing it down outside the easiest way to wrangle it as it's a little bulky and cumbersome to maneuver in a kitchen or laundry sink but can be done. Be mindful not to get too much water on or around the digital display at the bottom.

To clean the inside we have found that filling with water, heating, adding some PBW and recirculating via the pump works well, then rinsing and allowing to dry.

We use Bar Keepers Friend to clean the inside of our BrewZilla and get that nice shiny finish

The base of the unit where the heating elements are can develop some tougher stains that are more difficult to remove. We've found Bar Keepers Friend works well to remove more stubborn stains like these, which is cheap, safe on stainless steel and easy to find in most supermarkets. Check out our dedicated post on Deep Cleaning your BrewZilla for more information.

Brewing Software

With regards to third party brewing applications - KegLand have a BrewZilla profile for BeerSmith software available on their website (as a free download). There's also a profile within the free application BrewFather configured for the BrewZilla (both 35L and 65L versions). 

Software applications like these are almost essential as they take the guess work out of calculating how much water you need for mashing and sparging and really help with overall recipe creation. We've used the free version of BrewFather ourselves and had great results with it.

Accessories

As previously mentioned, there are plenty of additional accessories that can be purchased to improve the BrewZilla like the ones below;

  • Neoprene jacket: helps regulate temperature and speeds up heating times
  • Whirlpool arm: attaches to the pump outlet via the standard camlock fitting - allows for wort to be whirlpooled during cooling for whirlpool hop additions
  • Stainless mash paddle: a must have accessory and not particular expensive
  • Pro Screen: to delete the overflow pipe - makes stirring the mash easier
  • Hop spider: used to contain your hops to prevent them from potentially clogging up the pump

BrewZilla whirlpool arm attachment

Summary

Pros

  • Excellent price
  • Quality stainless steel construction
  • Digital temperature control
  • Built in pump
  • Lots of additional accessories
  • Small footprint
  • Loads of support on YouTube, Facebook groups and other blog sites
  • Fully electric - no gas/burners
  • Volume markings in metric and imperial measurements
  • 3 year warranty

Cons

  • Lack of detailed instructions on how to use
  • Tall, narrow design leads to temperature discrepancies between bottom and top of grain bed
  • Poor display and controller location
  • Malt pipe handle fitting/size is questionable
  • Default kit has the bare minimum to get going - some accessories are really beneficial and add to the cost
  • Camlock fitting comes loose with minimal disturbance

Conclusion

We'd strongly recommend the BrewZilla for homebrewers of any skill level or experience. It's a great way to dive into the world of all-grain brewing - at a really sharp price point, especially when compared to other alternatives on the market such as The Grainfather. 

The BrewZilla certainly isn't perfect, and there are undeniably a few draw backs and things to be considered - but most of these have ways to mitigate or work around them. Also, with the upcoming release of the Generation 4 BrewZilla, it's entirely possible the price of the 3.1.1 version will drop dramatically, which will present incredible value for money. We've made some great beers on our BrewZilla and expect to get several more years of service from it.

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