# Sovereignty Module: Distill the Spirit

## Complete Grain Alcohol, Biofuel Production, and Distillation Engineering Guide

Alcohol serves as fuel, solvent, disinfectant, preservative, and trade good. This campaign covers fermentation science, still construction, and fuel-grade ethanol production.

### Chapter 1: Fermentation Feedstocks

| Feedstock | Sugar Content | Alcohol Yield (gal/acre) | Processing Required | Fermentation Difficulty |
|---|---|---|---|---|
| Sugar cane | 12-17% sugar (direct) | 600-800 gallons/acre | Crush + juice extraction | Very easy (direct ferment) |
| Sugar beets | 15-20% sugar (direct) | 400-600 gallons/acre | Slice + water extraction | Easy |
| Corn (maize) | 70% starch (convert) | 300-450 gallons/acre | Mill + cook + enzyme/malt conversion | Moderate |
| Wheat | 65% starch (convert) | 250-400 gallons/acre | Mill + cook + enzyme/malt conversion | Moderate |
| Potatoes | 18% starch (convert) | 200-350 gallons/acre | Cook + enzyme/malt conversion | Moderate |
| Fruit (apples, grapes) | 10-25% sugar (direct) | 100-200 gallons/acre | Crush/press | Easy |
| Molasses | 50% sugar (direct) | N/A (byproduct) | Dilute with water | Very easy |
| Cellulose (wood, grass) | Complex (difficult) | Variable | Acid/enzyme hydrolysis | Very difficult |

### Chapter 2: Mashing (Starch to Sugar Conversion)

| Step | Action | Temperature | Time | Purpose |
|---|---|---|---|---|
| 1 | Mill grain to coarse flour | Room temp | - | Exposes starch to water and enzymes |
| 2 | Mix with water (1:4 ratio grain:water by weight) | Room temp | - | Creates mash |
| 3 | Heat to gelatinization temperature | 150-165F (corn: 165F, wheat: 130F) | 30-60 minutes | Starch granules swell and burst open |
| 4 | Cool to conversion temperature | 148-155F | - | Prepare for enzyme addition |
| 5 | Add malted barley (10-15% of grain weight) OR enzyme | 148-155F | 60-90 minutes | Amylase enzymes convert starch to sugar |
| 6 | Iodine test: drop of mash + drop of iodine | - | - | Blue/black = starch remaining. Clear/brown = conversion complete. |
| 7 | Cool to pitching temperature | 70-80F | - | Yeast dies above 105F |
| 8 | Add yeast (1 packet per 5 gallons, or 1 gram per liter) | 70-80F | - | Begins fermentation |

### Chapter 3: Fermentation Management

| Parameter | Optimal Range | Too Low | Too High |
|---|---|---|---|
| Temperature | 70-80F (ale yeast) | Slow/stuck fermentation | Fusel alcohols (harsh taste), yeast death |
| pH | 4.0-5.0 | Bacterial contamination risk | Slow fermentation |
| Yeast pitch rate | 1g dry yeast per liter | Slow start, infection risk | Excessive yeast flavor |
| Sugar concentration | 10-18% (potential 5-9% ABV) | Low alcohol yield | Osmotic stress, stuck fermentation |
| Oxygen | Aerobic at start only (first 12 hours) | Slow yeast growth | Acetic acid (vinegar) production |
| Time | 5-14 days (until bubbling stops) | Incomplete fermentation | Autolysis (off-flavors) |

Fermentation complete when: Airlock stops bubbling (no CO2 production). Specific gravity stable for 3 days. Gravity reads 1.000 or below. Taste: dry, no residual sweetness.

### Chapter 4: Still Design and Construction

| Still Type | Purity (single pass) | Complexity | Output Rate | Best For |
|---|---|---|---|---|
| Pot still (simple) | 40-65% ABV | Very low | 1-2 gallons/hour | Whiskey, brandy, flavor spirits |
| Pot still with thumper | 55-75% ABV | Low | 1-2 gallons/hour | Higher proof with flavor |
| Reflux column still | 85-95% ABV | Moderate | 1-3 gallons/hour | Neutral spirit, fuel alcohol |
| Packed column still | 90-96% ABV | Moderate-high | 1-3 gallons/hour | Fuel-grade ethanol |

| Component | Material | Function | Critical Notes |
|---|---|---|---|
| Boiler (pot) | Copper or stainless steel | Heats wash to boiling | Must be sealed. Pressure relief valve required. |
| Column (if reflux) | Copper pipe, 2-4 inch diameter | Separation/enrichment | Packed with copper mesh or ceramic saddles |
| Condenser | Copper coil in cold water jacket | Converts vapor back to liquid | Must have adequate cooling water flow |
| Thermometer | At top of column/still head | Monitors vapor temperature | 173F = ethanol. Above 200F = water/tails. |
| Collection vessel | Glass or stainless | Collects distillate | Separate foreshots, heads, hearts, tails |

### Chapter 5: Distillation Procedure

| Fraction | Temperature (vapor) | Volume | Character | Action |
|---|---|---|---|---|
| Foreshots | 148-165F | First 1-2 oz per gallon of wash | Methanol, acetone (TOXIC) | DISCARD ALWAYS. Never consume. |
| Heads | 165-175F | Next 10-20% of run | Harsh, solvent-like, acetaldehyde | Set aside (redistill or discard) |
| Hearts | 175-190F | Middle 50-60% of run | Clean, smooth, desired product | KEEP — this is your product |
| Tails | 190-205F | Final 20-30% of run | Fusel oils, heavy, oily | Set aside (redistill or discard) |
| Stop distillation | Above 205F | - | Mostly water | Turn off heat |

Safety: ALWAYS discard foreshots (methanol is lethal — 30ml can cause blindness, 60ml can kill). Proper distillation technique separates methanol from ethanol. Pot stills with proper cuts are safe. Never drink from the first fraction.

### Chapter 6: Fuel Ethanol Production

| Specification | Fuel Grade | Drinking Grade | Comparison |
|---|---|---|---|
| Purity required | 190+ proof (95%+ ABV) | 80-160 proof (40-80% ABV) | Fuel needs higher purity |
| Denaturation | Required by law (add 5% gasoline) | Not denatured | Makes fuel non-drinkable |
| Feedstock quality | Any fermentable material | Food-grade ingredients | Fuel can use waste/spoiled materials |
| Multiple distillations | 2-3 passes typical | 1-2 passes | More passes = higher purity |
| Molecular sieves | Needed for 200 proof (anhydrous) | Not needed | Removes last 5% water |
| Engine use | E10-E85 blends in gasoline engines | N/A | Higher blends need engine modification |

Fuel ethanol in engines: E10 (10% ethanol, 90% gasoline) works in any gasoline engine without modification. E85 (85% ethanol) requires flex-fuel engine or carburetor adjustment (larger jets, advanced timing). Pure ethanol (E100) requires significant engine modification but produces clean, high-octane combustion.

### Reference Card

1. Foreshots are TOXIC (methanol). Always discard first 1-2 oz per gallon of wash. Non-negotiable.
2. Hearts cut: 175-190F vapor temperature. Clean-smelling, smooth-tasting. This is your product.
3. Corn mash: mill + cook (165F, 60 min) + add malt (150F, 60 min) + cool + yeast. Ferment 7-14 days.
4. Sugar wash (easiest): 2 lbs sugar per gallon water + yeast. Ferment 5-7 days. Produces neutral spirit.
5. Reflux column: produces 85-95% ABV in single pass. Pack with copper mesh for best separation.
6. Fuel ethanol: 190+ proof required. 2-3 distillation passes. Denature with 5% gasoline for legal fuel use.
7. 1 bushel corn (56 lbs) = approximately 2.8 gallons of ethanol. 1 acre corn = 300-450 gallons ethanol.
8. Thermometer at still head is your guide: 173F = ethanol coming. Above 200F = mostly water. Stop.