Category Archives: Murphy Products

The latest from Lallemand!

Can I purchase LalBrew New England East Coast Ale Yeast or WildBrew Sour Pitch from Murphy & Son? The answer is yes! Interested? Please email frances.maud@murphyandson.co.uk or call 0115 978 5494 for prices, advice and availability.

So, what can you expect from these two Lallemand latest? The newest kid on the block is LalBrew New England, officially unveiled yesterday (Nov 13th ’17) and it’s an innovation that’s already causing a stir!

The LalBrew New England is a ready-to-use dried strain of Saccharomyces cerevisiae which has been selected for its specific ability to allow hop flavours to remain prominent while also providing the fruity notes championed by the ‘East Coast’ style. The ‘East Coast’ style is a sister style to its West Coast counterpart, but with yeast that naturally produces fruity aromas. An ale with a mixed bouquet of fruit and hops on the nose and when tasted, which is sometimes brewed cloudy and sometimes not.

As we’ve already said, Lalbrew New England is causing quite a stir, the Murphy sales team have already received enquiries and that’s before its official release! In fact, this new yeast has been produced in reaction to a number of customer requests, hence our confidence in its relevance and popularity. It’s also been seen very favourably in the trials executed by several breweries. Like to trial this yourself? Please don’t hesitate to get in touch.

Want the specifics?
Click here for the Lalbrew New England Technical Data Sheet

LalBrew New England isn’t the only innovation we’ve seen from Lallemand recently. The first product in the new WildBrew line, Sour Pitch, has also been making heads turn. A zesty addition to your brew style.

WildBrew Sour Pitch, is a ready-to-use dried bacteria. A strain of Lactobacillus plantarum specifically selected for its ability to produce a wide range of sour beer styles. Some of the styles you can brew with Sour Pitch include, Berliner Weisse, Gose, Lambic, American Wild and Sour IPA. In addition to which, if you choose Sour Pitch when brewing your sour beer style of choice, you can ensure unmatched consistency, effortless application, fully assured performance and unparalleled purity!

What’s the brewing industry reaction? Several breweries around the world have executed highly successful pilot brewing trials with Sour Pitch, the results of which have been overwhelming positive. Pair this with the huge buzz we’ve seen in the industry around Sour Pitch since its release at Drinktec 2017 and it’s undeniable that everyone is looking to try it, or rather “unlock their sour potential”.

Finally, WildBrew Sour Pitch has been designed to assist creativity in brewing, but here are a few tips for its application. The ideal temperature for inoculation of WildBrew Sour Pitch is: 35-38C (95-100.5F) optimal but 30-40C (86-104F) will result in effective souring and the recommended inoculation rate is 10g/hL.

Want the specifics?
Click here for the WildBrew Sour Pitch Technical Data Sheet

IONIC COMPOSITION – Brewing Liquor

Originally, brewing started up in areas where the water supply was suitable for the production of beer, but with the wide geographical spread of modern breweries and modern supply systems, the water available to the brewer can be at best variable and at worst quite unsuitable. The natural water in areas such as Burton-upon-Trent proved excellent for production of bitter ale beers and many brewers will now treat their incoming supply to adjust pH and salts content to emulate Burton water. Where dissolved salt levels are low, it is usually sufficient to make up the concentrations to the desired levels. The most important ions are calcium (Ca++), sulphate (SO4–), bicarbonate (HCO3-), and to a lesser extent magnesium (Mg++), and chloride (Cl-).

CALCIUM (Ca++)
Calcium is a very important constituent and performs a number of functions:-

  • Decreases the pH during mashing and wort boiling, favouring enzyme activity
  • Promotes the precipitation of unwanted proteins in the kettle, hop back or whirlpool
  • Promotes yeast flocculation at the end of fermentation
  • Promotes head retention on beer
  • Reacts with oxalate to form an insoluble salt, preventing gushing in beer

SULPHATE (SO4–)
Sulphate is added to give beer a drier and more bitter effect

BICARBONATE (HCO3-)
Bicarbonate has the opposite effect to calcium in that it causes an increase in pH, so reducing the desirable effects of calcium

MAGNESIUM (Mg++)
Magnesium levels are typically rather lower than calcium and in addition its salts are more soluble,
so it has less effect on pH and flavour than calcium

CHLORIDE (Cl-)
High chloride concentrations are not usually found in water; its addition can impart palate fullness

WATER HARDNESS
Both temporary and permanent hardness can be treated using acidic products

WATER HARDNESS
The presence of calcium or magnesium ions in water gives rise to hardness, the familiar effect of which is to diminish or prevent the formation of soap lather. Calcium (or magnesium) bicarbonate in water is termed temporary hardness, so called because it can be removed simply by boiling the water and precipitating insoluble carbonate together with the evolution of carbon dioxide. Calcium or magnesium salts other than bicarbonates, typically sulphates or chlorides, are termed permanent hardness because they cannot be removed by boiling. Instead, other treatments such as sequestering, ion exchange are used.

Acid Treatment
This is now the most widely used method, for a number of reasons:-

  • It is relatively inexpensive
  • It is easy to use and does not produce sludge in the hot liquor tank
  • Products such as AMS will add desirable anions, sulphate and chloride
  • It can be achieved by using products such as Phosphoric Acid or Lactic Acid if no anions arewanted – for example in lager beers

It is essential to rouse the liquor when acid treating in order to encourage the removal of the carbon dioxide. This can have corrosive effects on the materials of construction of hot liquor tanks if left in solution.

Laboratory Equipment for SALE!

It may be October, but we’ve been having a bit of a spring clean in the Murphy Laboratory to make way for new equipment, to further better our service. Therefore, we’ve a few pieces of specialist equipment up for sale at unmissable prices!

The Incubator (Shaker) – £800 (SOLD AS SEEN)

We purchased the New Brunswick INNOVA 4300 Series some years back for over double the price we’re selling it today, and it’s been a very reliable piece of kit. This large-capacity, environmental shaker is designed for handling high quantities of flasks, 12x 2-litre flasks to be exact, with the space for flasks 2-6 litres in size. The INNOVA 4300 incubator shaker provides temperatures from 5°C above ambient to 60°C and is capable of rapid temperature equilibration and uniform temperature, regardless of sample location provided by a unique high-speed air circulation. This creates faster operation, and enhanced productivity laboratories with shaking requirements.

 

  • Large-capacity, environmental shaker
  • For incubation and/or refrigeration
  • Wide temperature range
  • Uniform temperature, regardless of sample location
  • Rapid temperature equilibration

*scroll down for full specification.

The Fermenter – £750 (SOLD AS SEEN)

This piece of equipment was specially built to perform yeast propagation. Although six years in age, this bespoke fermenter has seen very little use during its lifetime, leaving it in excellent condition. It is, therefore as good as new, with no repairs ever having been required, nor should any repairs be required for the foreseeable future. It has a 100 litre capacity, with a top opening lid, a bottom outlet port and a number of sample ports. There is however, no cooling jacket.

Interested in purchasing either of these pieces of equipment, or would like to learn more? Please email laboratory@murphyandson.co.uk and quote ‘Equipment for Sale’ in the subject line, and a member from the lab team will be in touch.


New Brunswick INNOVA 4300 Specification:

  • Platform Size: 18 x 30
  • Maximum Capacity (250 ml flasks on universal platform): 30
  • Capacity & Largest Flask Size on Universal Platform: 4 x 6L
  • Orbit Diameter (in): 1
  • Temperature Range (C°) : A +5 to 60
  • Agitation (rpm): 25 to 500
  • Type/Application: Floor
  • Refrigeration: No
  • Multi-Step Programming: No
  • Photosynthetic Lights: No
  • Gassing Manifold: Optional
  • Overall dimensions W x D x H (in): 43 x 28 x 37
  • Weight (lbs): 400

Our Returnable Drum Service

We here at Murphy and Son are committed to operating a strict environmental policy to help reduce our carbon footprint. As part of this, we operate a returnable drum service. 

Alongside helping protect our planet, our returnable drum policy allows you to avoid the time consuming and often expensive process of disposing of drums and IBCs personally. We are always happy to collect your empty Murphy & Son drums and IBCs from your site, simply agree a date and time with our team by calling sales on 0115 978 5494.

To cover the cost of supplying and transporting our containers throughout the UK and to allow for damaged containers and the process of laundering, label removal, cap replacement and micro swabbing, we do charge a small fee per container. The majority of this fee is credited back to you upon receipt of your returned containers.

A full break down of any and all costs of this service can be found below.

Container size and type
Charge per container
Refundable amount per returned container
Non-refundable carriage charge per container
25 litre drum £5.83 £4.73 £1.10
200 litre drum £20.70 £18.39 £2.31
600 litre IBC £111.42 £105.08 £6.34
1000 litre IBC £201.63 £183.90 £17.73

There are also a few other conditions of service we’d like to tell you about.

  • All containers must be returned in a rinsed, clean and sound condition.
  • To comply with Food Standards, we ask that nothing except the product we supply is stored in said container. Contaminated containers will be refused return and/or refund.
  • We only except returns within 12 months of purchase.
  • Please stack any empty containers on a pallet and wrap ready for transportation
    We’re happy to provide a roll of shrink wrap for this purpose, just give us a buzz to request.
  • We only accept containers supplied by Murphy & Son Ltd, other suppliers’ containers cannot be accepted.
  • This service is only available on the UK mainland

If any of the above conditions aren’t met, then we reserve the right to refuse refund.

Packing your drums ready for collection…

25 litre containers Palletise in a 4×4 layout, minimum of 2×16-32 units and no more than 4 drums high, a total of 64 units
200 litre containers Palletise a minimum of 2 containers with a maximum of 2×4 per pallet, a total of 8 units
If the number of containers you use is very small, we will accept a pallet with less items if this is pre-agreed and within the required 12 month return time.

We’re committed to ensuring the quality and efficiency of this service, therefore if you have any questions please don’t hesitate to get in touch via info@murphyandson.co.uk or by calling our Sales Team on 0115 978 5494.

Thank you from all the Murphy & Son team, for your continued custom and helping us do our bit for the environment.

Happy brewing!

Addition of Copper Finings Murphy and Son Ltd

General Considerations

• Copper finings are derived from seaweeds and the active ingredients are carrageenans and furcellarans. They are available as dried seaweed, e.g. Irish Moss, or as extracts in the form of either pellets or powders.
• Copper finings can be added directly to the copper. Alternatively powders can be slurried with cold liquor prior to addition.
• The optimum rate of addition of finings should be determined annually when starting the new season’s malt or whenever there is a change in the type or supplier of malt.
• The rate of addition of finings will affect the clarity of both hot and cooled wort. Incorrect addition of copper finings (both over and under) can give poor fining action in the cooled wort and beer which fines with difficulty.

Range of Values

• Optimum rates of addition may vary from one malt variety to another, from season to season and from brewhouse to brewhouse. Murphys are happy to offer an annual optimisation service to our customers, either in our labs or on-site.
• Typical rates of addition are in the order of 1·0 – 5·0 gms per Hectolitre (10 ppm to 50 ppm, 1·63 – 8·15 gms per barrel).• Hot breaks should consist of large flocs in bright wort. Cold breaks should be a heavy fine sediment in bright wort.
• The haziness of worts from the heat exchanger should be within the range of 2 – 6 E.B.C. haze units. If worts are too bright fermentation problems are sometimes encountered because the release of carbon dioxide and consequent ‘stirring action’ that such a release promotes, are hindered.

Operational Protocols

• When casting to a hop-back, finings are added during the last 5 to 15 minutes of boiling. If the practice is to recycle worts at the hop-back finings can be added at this point. When using a Whirlpool, finings should be added at casting from the copper.
• Whatever method of addition is used the copper finings must be evenly dispersed.
• Rates of addition should be optimised according to results obtained.

Measurement Protocols

• The formation of hot breaks is assessed visually after sampling from the copper at casting.
• Cold breaks are assessed visually after sampling from the cold wort mains and allowing to stand for a minimum of 2 hours.
• Rate of addition of finings; a graph is drawn of casting, gravity against rate of addition of copper finings and breaks are indicated as excellent, good or poor. The rate of addition is altered when poor results are observed.

Kettle Finings at Murphy & Son

Brewing Audit

Build up of Beerstone

NIPAC B  – Beerstone Remover

Corner-Technical

Beerstone removal

As a brewer you may have a problem with beerstone build-up in brewing vessels and containers.
Beerstone is a compound called calcium oxalate, and if not completely removed can harbour microorganisms. Beerstone is a common factor in wild yeast infections within breweries, it can also act as a nucleation point and cause gushing.
The removal of this material is carried out by using a concentrated formulation of nitric and phosphoric acids.

Nipac B is designed primarily for this application in breweries and is formulated to be low foaming and is suitable for use in recirculation applications. It can be used as an alternative to caustic based detergents in breweries for the cleaning of bright beer tanks and tankers whilst under CO2 atmosphere. A gel version exists for manual application where recirculation of the product is not possible.

https://murphyandson.co.uk/store/75-beerstone-removal

BENEFITS OF NIPAC B

· Excellent mineral and protein removal
· Aids removal of beer and milk stains
· Safe for use on Stainless Steel
· Can be used under CO2 atmospheres
· Suitable for use in CIP applications.
For more information and dosage rates please click on the following:
NIPAC B Technical Data sheet. Please contact our sales line or sales email to purchase this product.

logo_holchem

Hygiene from Holchem

Function of Auxiliary Finings

Auxiliary Finings

General Considerations
• Auxiliary fininqs aid the action of isinglass finings by enhancing the total negative charge, especially when contribution by yeast is low. This improves the electrostatic interaction between proteins and isinglass finings. Beers fine more quickly because of the larger floc size.
• Auxiliary finings are available in solution as acidified polysaccharides, silicates, alginates and formulated blends.
• Factors which need to be considered are the type of auxiliary finings, dosage rate, storage temperature and conditions, time of addition, fining performance, yeast count prior to fining and compactness of sediment.

Range of Values
• Sulphur dioxide content of liquid auxiliary finings is typically between 200 and 300 mg per litre.
• Solutions of auxiliary finings should be visually bright prior to use.
• Yeast counts are typically 0·5 x 106 – 2 x 106 cells per ml with a mean of 1·0 x 106 cells per ml.
• The dosage rate of auxiliary finings is typically 0·9 – 3·5 ml per litre (¼ – 1 pint per barrel), but is related to the isinglass dosage rate and depends on compactness of the sediment.

Operational Protocols
• Liquid auxiliary finings are stabilised with sulphur dioxide and stored in inert containers at ambient temperature There must be adequate ventilation in the storage area because levels of sulphnr dioxide particularly on delivery can be high.
• Addition is made in-line through a dosing pump as beer is transferred from fermenting vessel to racking tank or directly to tank or cask
• Addition of alginate auxiliary finings is made at least 4 hours before addition of isinglass finings. Due to the rapid action of silica based auliliaries they can be added either pre- or post-isinglass finings. The actual time of addition is determined by experience.

Measurement Protocols
• Every batch of finings should be inspected visually and examined for infection by micro- organisms.
• Fining action is monitored by making the equivalent addition of finings to appropriate samples of beer and noting daily the size of flocs, speed of fining action and clarity of fined sample
• A nine gallon cask is fined and stillaged in the sample cellar for a larger scale production check on the fining performance
• Finings contribute to sulphur dioxide levels in beer The levels of sulphur dioxide in samples of fined beer should be measured. Auxiliary finings supplied by Murphy & Son Ltd. will add in the order of 0·25 – 1 ppm SO2 to the beer at typical addition rates.

Take a look at our Auxiliary finings range

 

WE HAVE A FEW SALE ITEMS

Due to all our new developments in the warehouse and production plant we have stumbled across a few stock items that are either obsolete or are nearing or past their best before date but still have good activity.

Yeast Quantity Best Before Price per pack
Mauri AWRI 1503 500g May-17 £23.44
Mauri Lager 497 500g Feb-17 £4.50
Munich Wheat Yeast 500g May-17 £30.56
Safspirit Malt Whiskey 500g Mar-17 £22.59
Safspirit American Whiskey 500g Jan-18 £21.19
Safspirit Fruit 500g May-17 £19.70
Safspirit Grain 500g Apr-17 £21.66

If you are interested in any of the above products please contact: frances.maud@murphyandson.co.uk

LET MURPHY & SON LTD HELP YOU ACHIEVE BEER STABILITY

Murphy and Son Ltd are proud to be the main UK distributors of a large range of stabilisers supplied by the following leading companies:

ASHLANDLOGO

Ashlands Stabilisers recognised worldwide for its Polyclar® range of products (PVPP) used for the stabilisation (longer shelf life and improved flavour) and clarification of beer and wine. ISP range includes products to remove haze-causing polyphenols (Polyclar®10 and Polyclar Super R), and for the simultaneous, balanced removal of haze causing polyphenols and proteins (Polyclar® Plus 730).

Polyclar® V and Polyclar® VT are available for wine clarification and removal of astringent flavours.

wr-grace--co-logo

Grace Stabiliser Grace has over 70 years of experience in the development of silica technology for the food industry, and actually pioneered the developed of a selective adsorbent for beer stabilisation.

DARACLAR® silica, made from silica gel, is a highly selective adsorbent developed specifically for breweries. With its specialised surface characteristics and unique pore structure.
DARACLAR® silica adsorbs only those proteins which cause haze formation in beer
DARACLAR® silica requires only a short period of time to work
DARACLAR® silica does not affect the flavour, clarity, colour and foam quality of beer
DARACLAR® silica may even eliminate the need for foam stabilisers in some cases.

Gold murphy logo

Murphy’s recommendations:

Polyclar 10 is a PVPP to remove polyphenols/tannins. Depending upon the beer and the shelf life required, dose rates vary from 10 g/hl  to 40 g/hl

DARACLAR® 920 is a silica hydrogel to remove proteins (It is a combination of proteins and tannins that produces haze). Dose rates 50g/hl to 100g/hl

polyclar and daraclar

It is important to chill beer to about -1 degrees centigrade  and hold for at least 24 hours (preferably longer) and maintain that temperature during filtration. It is also important to minimise oxygen in the product.

Tanks and lines may be purged with CO2 or N2. Ensure calm filling of vessels. But a little bit of fobbing into final container helps.

 

 

Diacetyl Control: Using ALDC to brew the beer you intended

What is ALDC? Alpha acetolactate decarboxylase.

Benefits of ALDC:

·        Reduces Diacetyl production
·        Significantly reduces maturation times
·        More efficient vessel utilisation
·        Improves beer quality

Diacetyl is well known among brewers and beer drinkers – distinctive for its buttery aroma and flavour. It is both produced and removed naturally by ale and lager yeast strains alike during the course of a typical fermentation and many reliable house yeasts leave a little residual diacetyl in the finished beer. As such it is fairly common with many traditional and popular beer styles to contain some level of diacetyl in their flavour profile.

Murphy and Son has worked with a number of craft breweries in the USA and United Kingdom who wanted to produce modern, hoppy pale ales without any flavour of diacetyl, but that was brewed using their existing house ale strain of yeast. The concentration of diacetyl was initially monitored to see how it was being lowered by the breweries controlled fermentation and how effective the yeasts own ability to reabsorb and reduce the diacetyl during maturation was.

Murphy and Son analysed this beer for diacetyl levels in their laboratory in Nottingham, England. It was found that by applying ALDC to the wort at the same time as the yeast was added in a concentration of 3 to 4 grams per hectolitre, the flavour would be brought below threshold in the finished beer as desired (figure 1).

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ALDC is commonly used in lager production to lower maturation time, the rate-limiting step, by converting acetolactate (the precursor of diacetyl) to a flavourless end-product called acetoin. (figure 2 below).

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In this instance the ALDC was able to boost the diacetyl lowering effect of the yeast in the same way, culminating in the desired low concentrations of diacetyl in the finished beer and allowing the brewer to broaden the spectrum of beers produced without the need for another yeast.

As ale fermentations are much faster a little more ALDC was required than may be needed for lager, but at 3 to 4 grams per hectolitre of ALDC it was still found to be an economical solution to the brewer.

Murphy and Son Ltd sell ALDC in 1kg pack sizes!