efficient hop flavor€¦ · hop product alpha utilization kettle dose (lb) wort loss (bbl) pellets...
TRANSCRIPT
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Efficient Hop Flavor
Phillip Chou, Michael Visgil, Virgil McDonald, Christina Schönberger
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Phillip ChouDirector of Brewing Solutions
John I. Haas, Inc.
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Michael Visgil
Brewing Solutions Specialist
John I. Haas, Inc.
Virgil McDonald
Innovations Brewmaster
John I. Haas, Inc.
Christina Schönberger
Head of Innovation & Education
BarthHaas GMBH & Co. KG
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About Us
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Take Home Message
Flavor
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Why Do We Care About Efficient Hop Flavor?
• Competition: Year to year growth in the number of breweries
• Greater Production Yields: Brew more beer for less money
• Sustainability: Less solid waste generation and disposal,
recyclable packaging
• Reduced Harmful Components like pesticides and herbicides
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Hops & Brewing Unit Operations
Efficiency Opportunities?
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Kettle Bittering
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Kettle Bittering Solutions
Pellets
• Type 90
• Type 45
• Pre-isomerized
CO2 ExtractNext Generation
Products
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CO2 Extraction Process
Extraction
Vessel
(filled with
Pellets)
Heat
Exchanger
Pure
Super-
Critical
CO2
CO2 Storage
Vessel
Super-Critical CO2 with Hop Resins
CO2 Pump
Heat Exchanger
evaporates CO2
Separator
EXTRACT
Condensor
liquifies CO2
Gaseous CO2
Liquid CO2
Pressure
Control
Valve
250 bar
⇩70 bar
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CO2 Extract Product Features
• Higher concentrations of alpha acids versus pellets
➢ Pellets: 13 - 18% alpha, CO2 Extract: 30 - 55% alpha.
• No vegetative matter.
• Reduction in nitrates & pesticide residues.
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Beer Loss
1 kg of Pellets absorbs 10 L of wort/beer
• Process losses due to
absorption by
vegetative matter.
• Can remove by
centrifugation…High
capital cost.
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CO2 Extract Yield Increase
No vegetative matter in CO2 Extract, reduces wort loss.
Hop Product Mass to Kettle (g) Avg Yield Loss %
T-90 Pellet 263 13.9
T-45 Pellet 263 10.0
T-35 Powder 263 9.1
CO2 Extract 263 8.1
Visgil, M.; McDonald, V.; Algazzali, V.; Byelashov, A. Supercritical CO2 Hop Extract Improves Brewery Process Yield Over Hop
Pellets. In Proceedings of the 2017 Master Brewers Conference, Atlanta, GA, October 12-14, 2017, Abstract #71.
Brew Volume: 8 gal
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Storage & Shelf Life Considerations
1 Box CO2 Extract = 3 Boxes Pellets
Photo Credit: Alec Mull, Founders Brewing
• Can be stored at
ambient temperature.
• 3 year shelf life at
ambient.
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Next Generation of Extract-based Hop Products
Flowable Liquid
• Pours from package at ambient temperatures.
Concentrated Alpha Product
• 65% by weight.
• Compare to bittering pellet concentrations of 13-
20% alpha or CO2 extract at ~50-55% alpha.
• No vegetative matter.
• Minimal amounts of beta acids and waxes.
• Up to 98% reduction in nitrates.
Efficiency
• 10-20% (relative) greater alpha acid utilization
relative to pellets during wort boil.
Flowable Hop-based Extract (FHE)
Recyclable
Packaging
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Brewing Value
• Reduced Beer Loss
Hop
Product
Alpha
Utilization
Kettle
Dose (lb)
Wort Loss
(bbl)
Pellets 0.25 37.0 1.4^
FHE* 0.30 6.6
100 bbl Brew
50 IBU Target Bitterness
100 bbl Brew
Beer Production Cost: $175/bbl
Beer Loss Reduction Cost Impact: $250
*Flowable Hop Extract-based Product^Wort loss due to hop vegetative matter only. Does
not take into account losses due to other wort solids.
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Supply Chain Savings
• Need less kg of FHE* to achieve target IBU’s relative to
pellets.
Brewing Bitterness Target: 40 IBU
3 kg of FHE = 20 kg of 15% pellets
$136.38
$36.03Yakima, WA to MA
UPS Shipping
Costs
✓ Ambient
Storage
✓ Less Storage
Space
*Flowable Hop Extract-based Product
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Aroma & Taste:
Whirlpool & Cold
Side Operations
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Comparison of Aroma & Taste Delivery Products
Pellets
• Type 90
• Type 45
Next Generation
Products
✓ Beer absoption by
vegetative matter
✓ Solid waste generation
✓ Supply chain impact
✓ Deliver desired flavor
outcomes
✓ Beer loss reduction
✓ Improved sustainability
✓ Supply chain cost
savings
✓ Easy & safe to use
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Hops & Brewing Unit Operations: Whirlpool Hop Additions
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Next Generation Whirlpool Hopping
Pourable Liquid Hop Extract Product (LHEP)
• Flows from package at ambient temperatures
Concentrated Flavor Product
• Varietal-specific
• 40 – 55% Alpha Acids
• High Oil Content: 8 – 14% Total Oils
• No vegetative matter
• Up to 98% reduction in nitrates
Application
• Whirlpool addition
Recyclable
Packaging
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Liquid Hop Extract Product (LHEP) Features
Bitterness Impact
• 2 – 10% Alpha Acid Utilization
Equivalents
• 1 g/L LHEP replaces 5.8 g/L
(1.5 lb/bbl) pellets
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Increased yields by substituting Liquid Hop Extract
Product (LHEP) for pellets.
Hop
Product
Whirlpool
Dose (lb)
Wort Loss
(bbl)
Pellets 150.0 5.8*
LHEP 25.8
100 bbl Brew
Impact on Efficiency
*Wort loss due to hop vegetative matter only. Does
not take into account losses due to other wort solids.
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Increased yields by substituting LHEP for pellets.
T-90 Citra®
Pellets (lb)
T-90 Mosaic®
Pellets (lb)
Citra LHEP
(lb)
Mosaic LHEP
(lb)
% Beer
Yield
Pellet Beer
Control18 18 82
LHEP Beer 3.1 3.1 93
• 30 bbl Brews
• 70 IBU Target
• 7% ABV Target
• Beer Cost: $175/bbl
• Value of Beer Gained Due to Increased Yield: $577
Liquid Hop Extract Product (LHEP) Features
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Pellets
LHEP
Gas Chromatography-Mass
Spectrometry data indicated
that oil profiles were
comparable for LHEP & pellet
beers
Liquid Hop Extract Product (LHEP) Aroma Analysis
LHEP
Pellets
LHEP
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Hops & Brewing Unit Operations: Cold Side Hop Additions
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Hopping Trends
Traditional IPA Hazy IPA
50 IBU
1 lb/bbl (0.38 kg/hL) Dry Hopping
30 IBU
5 lb/bbl (1.94 kg/hL) Dry Hopping
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Dry Hopping Losses
Hazy IPA
30 IBU
5 lb/bbl (1.94 kg/hL) Dry Hopping
Dry Hopping Beer Loss
T-90
Pellets
226.8 kg 22.7 hL
500 lb 19.3 bbl
117.3 hL (100 bbl) Brew
1 kg of Pellets absorbs 10 L of wort/beer
• Beer Production Cost: $175/bbl
• Production Loss: $3,378
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Dry-hopping Considerations
HopGun (BrauKon)
Specialized Equipment Safety Issues
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Solid Waste
1 kg of Pellets absorbs 10 L of wort/beer
Solid waste
handling &
cost needs to
be taken into
account
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Sustainability
• Reduced solid waste management costs.
Spent
Hops
Transport to Waste
Handling FacilityHolding Tank+ Wort
Waste Water
Treatment Plant
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Hop Aroma Chemistry
Design by Victor Algazzali
Graphics from http://www.bojensen.net/index.html
Table adapted from: Eyres, G.; Dufour, J.
J. Chromat. A 1977, 1150, 70.
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Hop Oil Isolation & Fractionation
CO2 Extract
Hop Oils Alpha Acids
Beta Acids
Oil
Component
Oil
Component
Oil
Component
Distillation
Separation
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• Cold side applications
• Completely soluble in beer
• No vegetative matter
• 2 Year shelf life (refrigerated)
Hop Oil Product
• Imparts a wide variety of aroma
attributes
➢Citrus
➢Floral
➢Spicy
➢Herbal
• Can be varietal-specific
➢Citra
➢Mosaic
➢Cascade
➢Hersbrucker
➢Perle
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Sensory Impact of Hop Oil Product Addition
Control Beer
Beer + Hop
Oil Product A
Hop Oil Product A
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Control
Beer + Hop Oil Prod B
Sensory Impact of Hop Oil Product Addition
Hop Oil Product B
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• Achieving desired aroma, flavor, and bitterness can be
achieved efficiently through the use of advanced hop
products.
• Extract- & essential oil-based products address different
needs in the brewery, provides ease of use, as well as cost
savings.
Summary
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• Marshall Ligare
• Victor Algazzali
Acknowledgements