Geysir Bread: An Icelandic loaf baked at home using a café recipe and a proofer

# What happened

# How it was baked at home The baker wanted to reproduce the traditional method—loaves buried in geothermal sand and cooked by earth/steam—but avoided leaving a gas oven running overnight. Instead they used a proofer set to 198°F (92.2°C) to simulate the hot, moist environment of a volcanic steam field. Pan size used: 7.88 × 4 × 4 in (20 × 10.16 × 10.16 cm). No substitutions were made to the recipe as provided.

# Flavor and texture notes

# Planned changes and rationale The baker intends to make two main changes for the next attempt:

• Cut sugar by 50% to better match the café version's balance. The current bake registered noticeably sweeter than the memory of the bakery loaf.
• Try baking in an oven at roughly 212°F (100°C) to provide a higher bake temperature than the proofer offered, potentially improving crumb openness.

# What readers can take away If you want to try recreating Geysir Bread at home: use the café's recipe as a starting point and convert measurements to weight for consistency. If you don't have a geothermal site or don't want to leave an oven on overnight, a proofer at a controlled high temperature can approximate the humid, low-heat environment, though it may change crust and crumb outcomes. Expect to tweak sugar and bake temperature to match the original café loaf.

# Community reactions (high level) Comments on the baking forum included praise for the idea of using a proofer as an overnight low-heat oven, suggestions to try an oven at ~212°F, and references to existing media that show Geysir Bread being buried and baked in sand at a volcanically-heated lake. Several readers expressed curiosity about trying different appliances (countertop roaster, proofing boxes) to reproduce the effect.

# Quick practical notes

• Batch: two loaves, 1,250 g each.
• Pan size: 7.88 × 4 × 4 in (20 × 10.16 × 10.16 cm).
• Simulation method: proofer at 198°F (92.2°C). Expect to experiment with sugar and temperature to match the café version more closely.