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# Portobello Mushroom Panini at The Farmhand
- URL: https://onesandwich.com/guerneville-the-farmhand-portobello-mushroom-panini/
- Published: 2026-10-13T14:19:26.000Z
- Updated: 2026-10-13T14:19:26.000Z
- Description: Portobello mushroom, pesto, tomatoes, arugula, provolone cheese, balsamic reduction on sourdough. Sandwich Score 77, excellent. At The Farmhand, Guerneville.
- Author: Andrew Lekashman
- Tags: USA, California, #shop-sandwich, #auto-imported

A sandwich at [The Farmhand](https://onesandwich.com/guerneville-the-farmhand/), a deli in Guerneville, California.

SourdoughBalsamic (vinegar,…ProvoloneArugulaTomatoPestoMushroomSourdough

**77**

Sandwich Score  
out of 100 · excellent

Excellent. Small moves left on the board.

Reads as a fully realized veggie panini, five of six roles, most layers have a partner.

Balance

96

Harmony

78

Contrast

100

Structure

100

Focus

96

Composition

84

Quality

100

Envelope

95

−4 pressed the fresh layers flat

More bitter than 90% of the catalog.

Each bar is one pillar of the score, 0 to 100\. The tick marks what a sandwich at the summit needs; an amber bar is the one holding this sandwich back.

**sourdough**, pressed: portobello mushroom; pesto; tomatoes; arugula; provolone cheese; balsamic reduction (high tier).

## Balance

salt1.0 · 52ndacid1.1 · 74thfat1.3 · 20thsweet0.7 · 81stumami1.6 · 56thheat0.0bitter0.6 · 90th

__Flavor axes__
| Axis   | Value | Catalog percentile |
| ------ | ----- | ------------------ |
| salt   | 1.0   | 52nd               |
| acid   | 1.1   | 74th               |
| fat    | 1.3   | 20th               |
| sweet  | 0.7   | 81st               |
| umami  | 1.6   | 56th               |
| heat   | 0.0   | n/a                |
| bitter | 0.6   | 90th               |

**96** Balance, out of 100

The seven flavor axes of the whole sandwich, each summed across its layers. The shaded ring is the catalog's middle 80%; the small number under each axis is where this sandwich falls in the catalog. A shape that sits inside the ring is in the range most sandwiches live in; a spike past it is where this one stands apart.

## What each layer brings

| Layer                                                             | Role    | Flavor and texture                      | Points    |
| ----------------------------------------------------------------- | ------- | --------------------------------------- | --------- |
| sourdough                                                         | bread   | soft chewy crusty                       | the frame |
| portobello mushroomscored as Mushroom                             | bulk    | umami 2 soft springy juicy              | **+20**   |
| pesto                                                             | sauce   | fat 4 salt 2 umami 2 creamy saucy       | **+4**    |
| tomatoesscored as Tomato                                          | texture | acid 3 umami 3 sweet 2 juicy soft fresh | **0**     |
| arugula                                                           | bulk    | bitter 2 fresh leafy tender             | **−4**    |
| provolone cheesescored as Provolone                               | protein | fat 3 umami 3 salt 2 soft melty         | **+24**   |
| balsamic reduction (high tier)scored as Balsamic (vinegar, glaze) | acid    | acid 4 sweet 3 wet saucy                | **+2**    |

Points: what the Sandwich Score would lose if that one layer were left out, everything else the same. A negative number means the sandwich scores higher without it. Flavor runs 0 to 5 on each axis.

## Pairings

- **Tomato + Balsamic (vinegar, glaze)**: vinegar on tomato, salad logic

## How to raise it

- Clear the board: pressed the fresh layers flat (-4).

[All the sandwiches at The Farmhand](https://onesandwich.com/guerneville-the-farmhand/) · [The menu this was read from](https://www.thefarmhand.net/blank?ref=onesandwich.com) · [Build your own in the Sandwich Builder](https://onesandwich.com/builder/)

Menu read 2026-09; items and prices change. The score is the site's opinion of the recipe as listed, not a review of the shop; tiers and house-made marks follow the menu's own wording.