FERMENTATION 101

Grape Wine Recipe

Grape wine is a timeless classic, offering rich, complex flavors with every sip. With simple ingredients and a bit of patience, you can create your own delicious, homemade wine that rivals the best vintages!  

Manil Punware · Brand Editorial · December 04, 2024 · 2 min read
Grape Wine Recipe - Gutbasket

Grape wine is a timeless classic, offering rich, complex flavors with every sip. With simple ingredients and a bit of patience, you can create your own delicious, homemade wine that rivals the best vintages!

Ingredients:

  • Grapes: ~3.5 kg (to yield around 3.5–4 L of juice)
  • Sugar: 250–500 grams (adjust based on grape sweetness and desired alcohol content)
  • Water: Minimal (only if juice quantity needs adjustment to fill the fermenter)
  • Wine yeast: 1–2 grams (or use wild fermentation if preferred)
  • Potassium Metabisulfite: 0.5g or 1/16 tsp (optional, for sterilizing)
  • Pectic enzyme: 1 teaspoon (optional, improves juice extraction)
  • Yeast nutrient: 1 teaspoon (optional, boosts fermentation)

Equipment:

  • 4.5 L glass fermenter with airlock
  • Large mixing bowl
  • Sanitized stirring spoon
  • Fine mesh strainer or cheesecloth
  • Hydrometer (optional, for measuring sugar content)

Step-by-Step Process:

1. Prepare the Grapes:

  • Wash grapes thoroughly to remove dirt and impurities.
  • Remove stems, as they can add bitterness.
  • Crush the grapes in a sanitized bowl to release juice. Use clean hands or a masher.

2. Sterilize (Optional):

  • Dissolve 0.5 g potassium metabisulfite in a small amount of water and mix into the grape must (juice + crushed fruit) to kill unwanted microbes.
  • Let it sit for 24 hours before adding yeast.

3. Add Sugar (if needed):

  • Use a hydrometer to check the initial sugar content. Adjust sugar to reach a target potential alcohol level of 10–13% (typically 1.080–1.100 SG).
  • Dissolve sugar in a small amount of warm water, then mix into the must.

4. Add Pectic Enzyme and Yeast Nutrient (Optional):

  • If using, mix pectic enzyme and yeast nutrient into the must. This helps maximize juice extraction and ensure healthy fermentation.

5. Add Yeast:

  • Hydrate the yeast in 1/4 cup( 60 ml) warm water for 15-20 min or according to package instructions.
  • Add it to the must and stir gently.

6. Primary Fermentation:

  • Transfer the must to your 4.5 L fermenter, filling it to about 80% capacity to leave room for foaming.
  • Attach the airlock to allow CO₂ to escape while keeping oxygen out.
  • Place the fermenter in a cool, dark area (18–22°C or 64–72°F) for 5–7 days. Stir daily with a sanitized spoon.

7. Strain and Transfer:

  • After primary fermentation (when bubbling slows), strain the must through a fine mesh or cheesecloth to remove solids.
  • Transfer the liquid (now young wine) back into the sanitized fermenter.

8. Secondary Fermentation:

  • Top up the fermenter with water or more wine to minimize air exposure.
  • Reattach the airlock and let ferment for 4–6 weeks, until bubbling stops completely.

9. Racking:

  • Carefully siphon the wine off the sediment (lees) into a clean fermenter to clarify the wine.
  • Repeat this process every 4–6 weeks if sediment continues to form.

10. Aging and Bottling:

  • Taste your wine; if satisfied, bottle it using sanitized wine bottles and corks.
  • Age the bottles for 3–6 months (or longer) for improved flavor.

Tips:

  • Keep everything sanitized to prevent contamination.
  • Use a hydrometer to monitor fermentation progress.
  • Aging enhances flavor, so patience pays off.

 

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