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Frost's bolete

Butyriboletus frostii

A species of Butter boletes, Also known as Apple bolete

Frost's bolete is a favorite among photographers thanks to its photogenic apple-red color and bark-like stem. These characteristics mean that frost's bolete is rarely confused for other mushrooms, though the color can fade in older mushrooms. Additionally, this mushroom often bruises blue when touched and may have small drops of yellow water on its pore surface.

Cap Diameter:

3 - 8 cm

Odor:

Mildly mushroomy but not distinctive.

General Info About Frost's bolete

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Attributes of Frost's bolete

Cap Diameter

3 - 8 cm

Height

5 - 10 cm

Cap

Cap 3.5 - 8 cm across; hemispherical, becoming convex to flat; dark red, yellowish; surface smooth, sticky

Cap Shape

Convex

Cap Surfaces

Slimy or slightly sticky, Smooth

Stem

Stem 4 - 8 cm long, 1 - 1.5 cm thick; red, yellow; coarsely reticulate

Stem Shapes

Cylindrical

Stem Surfaces

With Reticulum

Flesh

Lemon-yellow; turning blue when cut

Ring

Ringless

Spore Print Color

Olive brown

Odor

Mildly mushroomy but not distinctive.

Body Color

Yellow

Red

Flesh Bruises

Discolor to blue

Growth Form

Solitary, Scattered, Gregarious

Nutrient Gathering

Mycorrhizal

Substrate

On soil

You can find Frost's bolete by these plants:

Oaks, Pines

Occurence Habitats

Deciduous Woodland

Species Status

Widely distributed

Endangered Species

How to Identify Frost's bolete

Fruiting Body Cap Pores

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Habitat of Frost's bolete

Frost's bolete can be found in woods and wooded, areas where it's typically associated with oak. The mushroom forms a symbiotic relationship with the host tree's roots (where it's usually found).

Distribution Area of Frost's bolete

North America,Central America

Hunting Values of Frost's bolete

Most guides list it as edible, but this mushroom has a sour taste, and even a hint of bitterness.

Uses of Frost's bolete

Frost's bolete is a prized edible mushroom, sought after for its culinary value. It's popular among foragers and gourmet chefs, especially during its peak season. While frost's bolete can be consumed safely, it's essential to properly identify this species due to potential look-alikes. Its use in traditional dishes highlights its rich flavor profile, making it a seasonal delicacy. Always ensure correct identification before consumption to avoid any risks.

Scientific Classification of Frost's bolete

Phylum

Club fungi

Class

Mushroom-forming fungi

Order

Boletes and allies

Family

Boletes

Genus

Butter boletes

Similar Species to Frost's bolete

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Tips for Finding Frost's bolete

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When is the Best Time to Find Frost's bolete

Seek frost's bolete during late summer to early fall after rainfall when the weather is humid. Ideal temperatures range from 60°F to 80°F (15°C to 26°C). Early morning is often the best time to search for them.

What are the Ideal Soil Conditions for Frost's bolete

Well-drained soil, rich in organic material.

What are Some Tips for Finding Frost's bolete

Focus on wooded areas where oak trees and hardwoods are prevalent.
Inspect the base of trees and surrounding ground, looking for the distinctive cap and stem of frost's bolete.
Check around fallen branches or decaying wood in hardwood forests as potential spots.
Explore regions with rich, well-drained soil that supports the growth of hardwoods.
Gently move aside leaf litter that may conceal frost's bolete at the base of trees.

How to Clean and Preserve Frost's bolete

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How to Clean Frost's bolete

Gently brush off any debris with a soft brush or cloth. If necessary, lightly dampen the cloth to wipe the surface of frost's bolete, but avoid soaking as moisture can damage the mushroom.

Tips on Dry Preservation of Frost's bolete

Drying Methods

Dehydrator Drying, Oven Drying, Air Drying

Drying Duration

6 - 12 months

Store in airtight containers, in a cool, dark, dry place with low humidity.

Dehydrator drying: Efficient at removing moisture quickly and uniformly, preserving texture and color.

Oven drying: Set at low temperature with the door slightly ajar to ensure consistent drying.

Air drying: Best in arid climates with good airflow to prevent spoilage during drying.

Tips on Freezing Preservation of Frost's bolete

Freezing Methods

Blanching Before Freezing

Freezing Duration

10 - 12 months

Blanching before freezing: Briefly heat vegetables to halt enzyme actions which can cause loss of flavor, color and texture.

Tips on Refrigeration Preservation of Frost's bolete

Refrigerating Methods

Paper Bag Storage, Perforated Plastic Bag Storage, Crisper Drawer Storage

Temperature

2 - 4 ℃

Refrigerating Humidity

90 - 95 %

Refrigerating Duration

5 - 7 days

Paper Bag Storage: Store in a paper bag to allow air circulation and prevent moisture accumulation.

Perforated Plastic Bag Storage: Wrap in perforated plastic to retain some humidity while allowing airflow.

Crisper Drawer Storage: Store in the crisper drawer at a moderate humidity setting, separate from fruits.

Common Questions People Also Ask

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More Mushrooms That Are Similar to Frost's bolete

Russell's bolete

Aureoboletus russellii

Shaggy-stalked bolete

Heimioporus betula