7 - Tequila and Mezcal Flashcards

1
Q

What are the most important types of agave spirits?

A

Tequila and Mezcal

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2
Q

To where are agave plants native?

A

Central America

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3
Q

How many different species of Agave are there?

A

Hundreds

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4
Q

Briefly describe Agave plants (of all species)

A

The roots grow into the ground from a hard central core
The core is covered with long, spiky, waxy-textured leaves

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5
Q

Name carbohydrate reserves in Agave

A

Fructans

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6
Q

Name a commonly occurring fructan in Agave

A

Inulin

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7
Q

To what age can Agave plants live?

A

15-20 years

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8
Q

How does the Agave plant change during its lifetime?

A

The central core grows as the plant fills it with fructans

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9
Q

What happens when the Agave plant reaches maturity?

A

It flowers, using up its carbohydrate reserves, then dies

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10
Q

How do distillers use Agave to create alcohol?

A

They use the fructans, once they’ve been converted to fermentable sugars

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11
Q

When is the best time to harvest Agave?

A

Just before it flowers as the plant will contain the greatest quantity of fructans

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12
Q

When are agave’s aromas at their most interesting and complex?

A

Just before flowering

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13
Q

Name some aroma descriptors derived from agave

A

Bell pepper
Vegetable
Olive
Black pepper

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14
Q

Describe harvesting agave

A

The plant is cut from its roots
The spiky leaves are cut away and discarded, leaving the central core/piña

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15
Q

What happens once the piña has been delivered to the distillery?

A

It’s usually halved or quartered, then cooked

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16
Q

What is the goal of cooking the piña?

A

To convert the fructans into fermentable sugars
To develop flavours within the piña
To soften the piña

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17
Q

What are the two traditional methods of cooking agave?

A

Steaming
Roasting

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18
Q

How is agave cooked in traditional Tequila production?

A

It’s slowly steamed in brick ovens

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19
Q

Describe the benefits of steaming the piña

A

It’s relatively gentle
It develops aromas and flavours that are native to the agave

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20
Q

Name a modern technique for cooking agave
Name it

A

Cooking in pressurised steam ovens
Autoclaves

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21
Q

What are the potential pitfalls of Autoclaves?

A

They can burn the piña

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22
Q

Are Autoclaves better or worse than traditional ovens?

A

They can be just as good

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23
Q

Is Tequila made from agave exclusively steamed in brick ovens?

A

Rarely

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24
Q

How is the piña cooked in Mezcal production?

A

Steaming
Roasting

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25
Where is the majority of Mezcal made?
Oaxaca
26
How is agave often cooked in Oaxaca?
Roasted in stone-lined pits
27
Briefly describe the typical cooking process in Mezcal production
A fire is lit to heat the stones Once the fire is out, the pit is lines with piñas The piñas are covered in earth and left to cook
28
What effect does the firepit have on Mezcal?
It creates smoky aromas (from subtle to pronounced)
29
Is all Mezcal smoky?
No
30
What happens after the piñas are cooked?
The sweet juice is crushed out of them and separated from the fibres within the piña
31
What's the most traditional way to crush the piñas?
By hand
32
What's the simplest and most common way to process cooked piñas?
To use a large stone wheel called a tahona
33
Briefly describe crushing using a tahona
It's rolled around a fixed path within a circular stone pit Piñas are placed in the path of the tahona stone to crush them
34
Describe the use of tahonas between Tequila and Mezcal
Widely used in Mezcal production Their use is limited in Tequila
35
How are cooked piñas most commonly processed in Tequila?
With complex mechanical milling machines
36
How is the maximum juice extracted from piñas after crushing?
The crushed fibres are flushed through with water to make sure as much sugar is extracted as possible
37
Name a new piece of equipment for extracting maximum possible fermentable sugars from agave
Diffuser
38
How are diffusers used in Tequila production?
Whole, uncooked piñas enter the machine and the output is a liquid rich in fructans This liquid is then cooked to make the fructans fermentable
39
What is the major disadvantage of using a diffuser?
Not all of the desired aromas are created in the resulting liquid
40
Why are diffusers controversial?
Because they fundamentally change the sequence of production
41
What in the process of creating Tequila, is formulation?
Creating the sweet liquid for fermentation
42
Who may NOT add non-agave sugars?
Mezcal producers
43
How much sugar can come from non-agave sources in Tequila?
Up to 49%
44
What is the major disadvantage of using non-agave sugars in making Tequila?
The result can be less intense agave flavours
45
What is the effect on quality of using non-agave sugars?
It does not mean the spirit will be poor
46
How might agave fibres be used in production
They may be discarded They may be added to the fermentation vessel to add agave character
47
Apart from using fibres, how might further complexity be added to Tequila/Mezcal during fermentation?
By using ambient yeast
48
How are fermentation enhancements used among Mezcal and Tequila?
They are widespread in Mezcal but only used in some higher quality Tequilas
49
In which stills are agave spirits distilled?
Pot or column
50
What is a typical distillation for a higher quality agave spirit?
Double distilled in pot stills to maximise agave character
51
Describe the more common Tequila still
Usually large, modern pot stills
52
Describe the more common Mezcal still
Small and often home made
53
How might the most pronounced, complex agave spirits be distilled?
By being collected at low strengths; below 60% is common
54
What's the next stage in creating agave spirits after distillation?
Stored in inert vessels prior to sale Matured in an oak vessel
55
What is the aim with post distillation agave-spirit processes?
To retain the defining agave aromas
56
Describe the impact of the large oak barrels used in making agave spirits
They give very little flavour They allow smoothness and flavour complexity to develop
57
What is the maturation trend in making agave spirits?
Many spirits are now short-aged in old oak barrels
58
A small but growing number of agave spirits are matured in...
Oak barrels for a year or more
59
The use of...in the production of agave spirits is still relatively new
Oak barrels
60
Describe the best examples of agave spirits aged in oak barrels
They delicately balance the aromas from old oak with agave aromas The agave aromas are typically less vibrant but no less complex than those found in unaged spirits
61
What may happen in the production of agave spirits after maturation?
Caramel colouring may be used
62
Name which type of Tequila typically gets all of its colour from caramel colour
Gold
63
Name which colouring is most commonly added to Tequila
Abocante
64
Besides colour, what else may abocante add to a spirit?
Textural smoothness Aromas which mimic the effects of maturation
65
Is abocante the only additive allowed in the production of agave spirits?
Not anymore
66
Where does agave grow?
Southern parts of the USA and South America
67
Which is the dominant country for production of agave spirits?
Mexico
68
Name the two most important agave spirits
Tequila Mezcal
69
Tequila and Mezcal are not only different in style, but the...are very different
Businesses that produce them
70
...is dominated by big brands producing on a large scale
Tequila
71
Mezcal production is still dominated by...
Producers working on a small scale
72
What do the businesses of Tequila and Mezcal have in common?
Their production is legally controlled
73
What kinds of things do agave laws state about their production?
Where the agave can be grown How the spirit should be produced and labelled
74
Why is the use of the word 'Mezcal' controversial in Mexico?
Mezcal can only be used when the spirit conforms to Mezcal laws, but the word was historically used for any agave spirit
75
Name the species of agave necessary for production of Tequila
Agave tequilana Weber (var.azul) Blue agave
76
Where must tequila agave be grown?
In specific areas of five Mexican states
77
Where is the most important area of agave production for Tequila?
Jalisco
78
How long does a blue agave plant typically take to reach maturity?
7-10 years
79
Why is blue agave still capable of individual complexity?
It develops different characteristics depending on where it's grown
80
Give two terroir-based differences in blue agave characteristics
Highland area of Jalisco: Can be fruitier Tequila Valley area: Less fruity
81
List the production techniques common to the best Tequilas
Cooked slowly using steam Fermentation with agave fibres Double distilled in pot stills and collected at low strengths
82
What is the result of the techniques used to make quality Tequila?
Warming texture Pronounced, complex agave character
83
...is now a firmly established part of Tequila production
Oak maturation
84
How many categories of Tequila are there? What are they?
Two Tequila 100% agave Tequila
85
What are the rules regarding the second category of Tequila? How may these spirits be labelled?
Min 51% of the sugars must have come from agave The other 49% can come from any non-agave source Mixto
86
What are the five ageing classes of Tequila and their requirements?
Blanco, Plata (Silver) - None Joven, Oro (Gold) - None Reposado (Aged) - Two months in oak Añejo (Extra Aged) - One year in oak barrels Extra Añejo (Ultra Aged) - Three years in oak barrels
87
Where can Mezcal be produced? Where is the most important area?
In nine Mexican states Oaxaca
88
What species of agave must be used for Mezcal?
Any
89
What is the most commonly used species of agave in Mezcal production?
Agave angustifolia Haw (var. espadín) Agave espadin
90
Which stills must be used for Mezcal?
Pot or Column
91
Which stills must be used to make the best Mezcal?
Pot stills
92
Describe pot stills used for Mezcal
Often small, simple stills Directly heated Some made of wood or clay rather than copper
93
Describe the resulting distillate from traditional Mezcal pot stills
Low strength Pronounced Can include an unusually high number of Group 3 fractions, which can give a sharp heat to their texture and extra levels of intensity
94
Describe the use of oak maturation in Mezcal
Extremely rare Most commonly stored in inert vessels prior to bottling
95
What are the three factors used to give Mezcal its smoky, earthy, vegetable flavours
The roasting process The use of agave fibres in fermentation Distillation in simple pot stills to a low strength
96
How has Mezcal production been protected?
The traditional practices were recognised by new laws introduced in 2016
97
List the three categories of Mezcal
Mezcal Artesanal Mezcal Ancestral Mezcal
98
Briefly describe the legal requirements for a drink to be labelled as Mezcal
Any method of cooking No restrictions on crushing the piña, fermentation vessel or still
99
Briefly describe the legal requirements for a drink to be labelled as Artesanal Mezcal
Only roasting pits or brick ovens Only simple milling machinery to supplement hand crushing or use of tahona Directly heated copper, wood or clay pot stills
100
Briefly describe the legal requirements for a drink to be labelled as Ancestral Mezcal
Similar to Artesanal Only roasting pits Crushed by hand or tahona Directly heated wood or clay
101
What are the three main Mezcal age designations?
Blanco, Joven - Unaged Reposado (Aged) - Two months in oak Añejo (Extra Aged) - One year in oak barrels