Pythagore : French IPA Teorem / Barbe Rouge - 20L

Brew Pythagore: our French IPA recipe

Pythagore is a modern French IPA that highlights the hop duo Teorem and Barbe Rouge. The first brings notes of pineapple, citrus and spices; the second complements it with touches of raspberry and citrus. Combined with a refined malt base, they create an expressive beer, fruity and subtly spicy.

Rye (around 20%) reinforces the peppery/aniseed character of Teorem and adds depth. Lallemand Farmhouse yeast, used at 20 °C, provides good attenuation and a light phenolic profile that pairs perfectly with the hops. Golden Naked Oats add texture, roundness and a dense, slightly ivory foam.

The result: a highly drinkable and refreshing French IPA, with a present but controlled bitterness and a rich fruity and spicy aromatic profile.

Why choose this product?

• A duo of French hops with fruity and spicy aromas.
• A refined malt base for more texture and depth.
• A balanced, accessible and very enjoyable recipe.

Technical specifications

• Final volume: 20 L
• Style: French IPA
• Hops: Barbe Rouge, Teorem T45
• Malts: Pilsner, Rye, Golden Naked Oats
• Yeast: Lallemand Farmhouse
• Mash: single infusion
• The pack includes only the malts, hops and yeasts needed for the recipe.

Rolling Beers Tips

• For a crisper bitterness, aim for a water profile with 2 to 3× more sulfates than chlorides.
• A mash pH around 5.1 will highlight the dry and fruity side.
• Farmhouse yeast stays neutral at 20 °C: do not increase the temperature if you do not want a saison‑like profile.
• A 48‑hour cold crash improves clarity and aromatic stability.
• Find the full recipe and brewing process in our special article.

Product FAQ

• Is this recipe suitable for beginners? Yes, the dry hop is very aromatic but carries relatively low oxidation risk.
• Does rye make lautering more difficult? A gentle, progressive sparge is enough to avoid blockages.

The kit includes

• 4 kg Pilsner malt
• 1 kg rye malt
• 0.5 kg Golden Naked Oats malt
• 1 × 100 g sachet of Barbe Rouge hops
• 1 × 100 g sachet of Teorem T45 hops
• 2 × 11 g sachets of Lallemand Farmhouse yeast