Spelt Loaf (Kastenbrot) – Sourdough Recipe & Guide

A practical sourdough spelt (Dinkel) loaf baked in a loaf pan. Step-by-step schedule, science-backed tips and variations for reliable results.

At a Glance

Difficulty
medium
Active Time
40 minutes
Total Time
18-24 hours (depending on proofing)
Yield
1 loaf (800–900g)

This spelt kastenbrot (loaf baked in a pan) delivers a tender crumb, nutty aroma and a slightly open structure. Spelt hydrates more readily than wheat and is more enzymatically active, so a moderate hydration and gentle handling keep the crumb cohesive while preserving loft [1][2].

✓ Baked in a loaf pan (kastenbrot) for uniform slices ✓ Suitable for weekday baking with fridge retarding ✓ Low-knead method preserves spelt's delicate gluten

Not suitable if:

Ingredients

Weigh all ingredients on a kitchen scale. Spelt absorbs water differently from wheat; weighing is critical for consistent hydration [1].

Ingredient Amount % Note
Type 630 spelt (light spelt) flour 500g 100% Prefer fresh-milled or high-quality mill flour
Water 350g 70% lukewarm 24-27°C (75-80°F)
Active spelt/wheat starter 120g 24% fed and active (bubbly) [1]
Salt 10g 2% fine sea salt
Honey (optional) 10g 2% adds browning and sweetness

Schedule

Weekend Version

Autolyse and daytime bake

Saturday 7am Feed starter
Saturday 10am Mix dough (including 30 min autolyse) (30 min)
Saturday 10:30am-2:30pm Bulk fermentation at 20-22°C with 2 sets of stretch-and-folds (4 hours)
Saturday 2:30pm Pre-shape and bench rest (15 min)
Saturday 2:45pm Final shape into loaf pan (10 min)
Saturday 3pm Final proof (1.5-2 hours)
Saturday 5pm Bake (45-55 min)

Weekday Version

Mix in evening, retard in fridge, bake next evening

Evening 9pm Feed starter and mix dough (autolyse included) (30 min)
Evening 9:30pm Short bulk fermentation then shape into loaf pan and place in fridge (30-45 min)
Next day 5pm Remove from fridge to warm for 1-2 hours (1-2 hours)
Next day 6:30pm Bake (45-55 min)

💡 Tips

  • If dough is advancing quickly, retard in fridge to slow fermentation — spelt ferments faster due to higher enzyme activity [2].
  • Shaped dough keeps reliably up to 48 hours refrigerated; bring to a little warmth before baking for better oven spring.

Step by Step

1

Autolyse

In a large mixing bowl combine spelt flour and water. Mix until homogenous and let rest 20–40 minutes. Autolyse improves hydration and reduces necessary handling for spelt [1].

✓ Visual check: Dough looks cohesive and slightly glossy
⚠️ Common mistake: Skipping autolyse → tougher handling and weaker hydration response

⏱ 20-40 minutes

2

Add starter and salt

Add the active starter and salt (and honey if used). Mix with a dough scraper until evenly incorporated. Spelt is fragile; mix gently to avoid overworking.

✓ Visual check: Starter fully integrated, dough still soft not stiff
💡 Use a jar spatula to scrape sticky dough from container sides

⏱ 5-10 minutes

3

Bulk fermentation with gentle folds

Cover and ferment at 20-22°C. Perform two sets of gentle stretch-and-folds 30 and 90 minutes after mixing to build structure without degassing the dough. Spelt benefits from minimal mechanical action because its gluten is more fragile [2].

✓ Visual check: Dough gains strength, volume increases ~40-60%

⏱ 3.5-4.5 hours (variable)

4

Pre-shape and rest

Turn dough onto a lightly floured surface. Pre-shape into a loose log with minimal degassing. Rest uncovered or lightly covered for 10–20 minutes to relax the gluten.

✓ Visual check: Dough relaxed and slightly puffy

⏱ 10-20 minutes

5

Final shape into loaf pan

Line a loaf pan with parchment paper or grease it lightly. Shape dough into a tight loaf (do not over-tighten), place seam-side down into pan. Smooth top with wet hands if needed.

✓ Visual check: Evenly filled pan with slight dome

⏱ 10 minutes

6

Final proof

Cover and proof at room temperature until almost doubled or perform fridge retard 8–18 hours for flavor development. Spelt proofs faster; use the poke test: dough should spring back slowly [1].

✓ Visual check: Surface shows slight bulging above pan rim or gentle spring-back on poke

⏱ 1.5-3 hours at room temp or 8-18 hours refrigerated

7

Bake

Preheat oven to 230°C/450°F. If using a convection setting, reduce 10–15°C. Place loaf (on parchment) in oven. Bake 15 minutes covered with a large metal bowl or in a cloche to trap steam, then remove cover and bake 25–35 minutes until crust is deep golden. A sound hollow and internal temp 96–99°C (205–210°F) indicates doneness [1].

✓ Visual check: Deep golden crust, internal temp reached

⏱ 40-55 minutes

8

Cool

Remove loaf from pan using oven mitts, transfer to a rack. Let cool at least 2 hours before slicing—spelt crumb continues to set and cutting early yields gummy texture [2].

✓ Visual check: Loaf cooled to room temperature

⏱ 2+ hours

Tips & Variations

Variations

With seeds

Add 50g mixed seeds to dough or press into top before baking

→ Adds texture and retains moisture

Half-spelt

Replace 50% spelt with bread flour

→ Stronger gluten, more open crumb

Sweet spelt breakfast loaf

Add 40g raisins and 10g cinnamon

→ Softer, sweeter loaf

Pro Tips

Common Issues

Not going as planned? Common issues for spelt kastenbrot:

Storage

Room temperature (bread bag or box)

4-5 days

Store cut side down; refresh slices in toaster or oven

Kitchen towel

3-4 days

Use linen to allow slight breathability

Freezing

3 months

Slice before freezing and toast directly from frozen

⚠️ Do not refrigerate—staling accelerates due to starch retrogradation; freeze instead for long-term storage [2].

Sources

  1. [1]
    The Perfect LoafThe Perfect LoafLink
  2. [2]
    PlötzblogPlötzblogLink