Yeasts

Yeasts#

Some breweries use 100% Brettanomyces for the fermentation of some of their beers, and omit Saccharomyces from the recipe

      1. f(t)
            \
 2. S(t) -> 4. y:h'(t)=0;t(X'X)X'Y -> 5. b -> 6. SV'
            /
            3. h(t)

Allegory#

ii: \(\mu\) Yeast#

  • Gueuze, Iambic, Saison

  • Oud Bruin, Flanders Red Ale

  • Orval

Hide code cell source 
import matplotlib.pyplot as plt
import numpy as np

# Clock settings; f(t) random disturbances making "paradise lost"
clock_face_radius = 1.0
number_of_ticks = 8
tick_labels = [
    "Saccharomyces", "Cerevisiae", "Pastorianus", "Brettanomyces", "Lactobacillus",
    "Pediococcus", "Wild", "Kveik", "Other"
]

# Calculate the angles for each tick (in radians)
angles = np.linspace(0, 2 * np.pi, number_of_ticks, endpoint=False)
# Inverting the order to make it counterclockwise
angles = angles[::-1]

# Create figure and axis
fig, ax = plt.subplots(figsize=(8, 8))
ax.set_xlim(-1.2, 1.2)
ax.set_ylim(-1.2, 1.2)
ax.set_aspect('equal')

# Draw the clock face
clock_face = plt.Circle((0, 0), clock_face_radius, color='lightgrey', fill=True)
ax.add_patch(clock_face)

# Draw the ticks and labels
for angle, label in zip(angles, tick_labels):
    x = clock_face_radius * np.cos(angle)
    y = clock_face_radius * np.sin(angle)
    
    # Draw the tick
    ax.plot([0, x], [0, y], color='black')
    
    # Positioning the labels slightly outside the clock face
    label_x = 1.1 * clock_face_radius * np.cos(angle)
    label_y = 1.1 * clock_face_radius * np.sin(angle)
    
    # Adjusting label alignment based on its position
    ha = 'center'
    va = 'center'
    if np.cos(angle) > 0:
        ha = 'left'
    elif np.cos(angle) < 0:
        ha = 'right'
    if np.sin(angle) > 0:
        va = 'bottom'
    elif np.sin(angle) < 0:
        va = 'top'
    
    ax.text(label_x, label_y, label, horizontalalignment=ha, verticalalignment=va, fontsize=10)

# Remove axes
ax.axis('off')

# Show the plot
plt.show()
Hide code cell output
../_images/65fd1536e82fb248d4e267588ac7662bb07a924aa38e7fd7d7d7f59a9fa094ec.png

V7: \(\sigma\) Temperature#

  • Determines sensory compounds & is a control-step in modern brewing (e.g. Brett is typically viewed as a contaminant)

i: \(\%\) Other#

  • Parameters \(\beta\): malt, yeast, hops, water, other (oustide Reinheitsgebot)

  • Combination of these parameters will give character

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