Wyeast Activator 1728 Scottish Yeast

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Wyeast Activator™ 1728 Scottish Yeast

  • Ref: 100389.

all prices include VAT

Wyeast Activator™ 1728 Scottish yeast

Our Scottish ale strain is ideally suited for the strong, malty ales of Scotland. This strain is very versatile, and is often used as a “House” strain as it ferments neutral and clean. Higher fermentation temperatures will result in an increased ester profile.

Flocculation: high
Attenuation: 69-73%
Temperature Range: 55-75° F (13-24° C)
Alcohol Tolerance: approximately 12% ABV

American Barleywine
Baltic Porter
Christmas/Winter Specialty Spiced Beer
Foreign Extra Stout
Imperial IPA
Old Ale
Other Smoked Beer
Russian Imperial Stout
Scottish Export 80/-
Scottish Heavy 70/-
Scottish Light 60/-
Strong Scotch Ale
Wood-Aged Beer

Full swelling of Activator™ packages is not required for their use. The contents of Activator™ packages may be direct-pitched without prior activation. Our smack pack technology is intended to be a tool for your use in determining viability, and in initiating metabolism for faster starts to fermentation.
Instructions for the proper use of Activator™ packages:

1. To activate, locate and move inner packet to a corner. Place this area in palm of one hand and firmly smack package with the other hand to break inner nutrient packet. Confirm inner packet is broken.
2. Shake the package well to release the nutrients.
3. Allow package to incubate and swell for three hours or more at 70-75°F (21-24°C) or immediately direct pitch into wort.
4. Use sanitizing solution to sanitize the package before opening.
5. Shake well, open and pour Activator™ into five gallons of well-aerated or oxygenated wort at 70-75°F (21-24°C). Maintain temperature until fermentation is evident: by CO2 bubble formation, bubbling airlock or foaming on top of wort.
6. Adjust to desired fermentation temperature.

Swelling of the packs before they are smacked .If the packs warm up, dissolved CO2 in the yeast slurry will come out of solution and cause the pack to swell. It is not going from liquid to a gas state.. the liquid form of CO2 only exists at extremely high pressure or extremely low temperatures.
The swelling DOES NOT indicate that there is an infection or cross contamination
Delivery on Average take 2-3 Working Days
(sometimes longer During busy times)

For UK
Mainland UK, Order weight Under 1kg = 2.60 + VAT = 3.12
Mainland UK, order value Over 65 = FREE DELIVERY
Mainland UK, order value Under 65, But order weight Over 1kg = 5.42 + VAT = 6.50

Saturday delivery to mainland UK 21.25 + VAT = 25.50 (must have the order by, 2pm Friday)
Some postcodes we can't send on Saturday Delivery like AB 51

Highlands & Islands
Under 1kg 2.60 + VAT = 3.12
Under 78, 1kg - 25kg 13+VAT = 15.60
Over 78 - Upto 25kg = 6 + VAT = 7.20
Over 78 - 26kg - 51kg 12 + VAT = 14.40
Over 78 - 52kg - 76kg 18 + VAT = 21.60
Over 78 - 77 - 101kg 24 + VAT = 28.80

For Northern Ireland ( BT Post codes)
Northern Ireland order weight Under 1kg = 2.60 + VAT = 3.12
Northern Ireland order weight 1kg - 29kg = 7.50 + VAT = 9.00
Northern Ireland order weight 30kg - 59 kg = 15 + VAT = 18
Northern Ireland order weight 60kg - 89 kg = 22.50 + VAT = 27

Channel Islands - Jersey and Guernsey
Under packed order weight 1kg = 2.60 ( No Vat)
Order weight is 1kg - 25kg = 18.00 ( No Vat), 2 day service
order weight is 25.01kg - 50kg = 36.00 ( No Vat), 2 day service
order weight is 50.01kg - 75kg = 54.00 ( No Vat), 2 day service

For more Information please see Delivery Info at the top of the site

Feedback for Wyeast Activator? 1728 Scottish Yeast has been compiled from 4 reviews.

DateProductScoreCustomer Comment

Wyeast Activator? 1728 Scottish Yeast

  • Customer also bought: .... :
  • Safale US-05 Beer Yeast
  • Light Crystal Malt 500g Crushed / Milled
  • Roasted Barley 3kg Crushed / Milled
  • Munich Malt 500g Crushed / Milled
Customer Comment:

Excellent product.


Wyeast Activator? 1728 Scottish Yeast

  • Customer also bought: .... :
  • Maris Otter Pale Malt 3kg Crushed - Warminster
  • Maris Otter Pale Malt 500g Crushed - Warminster
  • Special B Malt 500g Crushed
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  • Protofloc Tablets, 15 Pack
  • The Grainfather All Grain Brewing System
  • Harris No Rinse Sterilizer 200g
  • VWP steriliser 100g
  • Reinforced Tube 10mm x 16mm (3/8")
  • LCD Stick on Home brewing Thermometer
Customer Comment:

Had trouble with the activator, thought I had smacked it properly but it was still in the separate pack when I opened it.


Wyeast Activator? 1728 Scottish Yeast

  • Customer also bought: .... :
  • Rakau Hops 100g
Customer Comment:

Not viable


Wyeast Activator? 1728 Scottish Yeast

  • Customer also bought: .... :
  • Wyeast Activator? 3944 Belgian White Beer Yeast
  • Curacao Bitter Orange peel - Cut 100g
  • Saaz Hops 100g
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  • Centennial Hops 100g
  • Hallertauer Hersbrucker Hops 100g
Customer Comment:

Smack pack did not activate. Pitched yeast anyway into well oxygenated wort but no activity after 48 hours. I then added my usual Safale yeast and it brewed out as normal. Dry hopping as I type.

On 26-May-2016 the supplier responded:
Hello, John

Sorry for the problems, we sell a lot of Wyeast and we store the yeast in our dedicated Wyeast fridge to keep it at its best
We have has some customer who have issues with Wyeast. best advice is on the brew day get it out of the fridge let it warm up to room temperature for 2-3 hours, Then smack the pack, This way the yeast does not go in to shock and die.
Its always as a homebrewer worth having a spare dried yeast just in case.

If its think foam it sounds like an infection
Whyeast generally starts to ferment like normal yeast in a day or 2 any longer and there is an issue with it

Adrian, The Home Brew Shop

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