07 Smell, taste and texture analysis
As a mycologist and cooking enthusiast with twenty years of experience in the wild, I have witnessed too many mistakes that rely solely on visual identification.Some mushrooms have an iconic smellβthe apricot aroma of chanterelles, the strong garlic flavor of garlic, and the spicy taste of spicy lactifloraβthese characteristics can be identified immediately.However, these sensory tests must be performed under strict safety rules.This guide will share how to use these sensory traits safely and effectively, elevating you from a newbie in mushroom identification to a sensory master.
In wild practice, scent is often the key to distinguishing "twin species".I have encountered mushrooms that look almost the same on several occasions and can only be determined by their true identity through the smell.For example, delicious chanterelles and toxic fake chanterelles are very similar in appearance, but the former has a unique apricot aroma, while the latter is tasteless or slightly moldy.
The smell of mushrooms comes from volatile organic compounds produced by fungi.These compounds are not produced randomly, but have clear evolutionary purposes:
- Attract specific insects or animals to help spread spores
- Defense against herbivores and competitive microorganisms
- As a byproduct of the metabolic process
Understanding this can help you understand why certain scents are so unique and stable β they are part of mushroom survival strategies.
Sucking mushrooms directly deeply is a dangerous practice and may inhale harmful spores or chemicals.The correct technique is:
1. Lift the mushrooms 15-20 cm away from the nose
2. Use your hands to swell between the mushrooms and nose to guide the odor molecules
3. Use shallow breathing instead of deep breathing
4. Let the olfactory system rest for a moment after each test
Different parts of mushrooms may emit odors of different intensity:
- Cover surface: usually the lightest odor
- Bacteria folds or holes: strong odor, spore production area
- Stomach base: Sometimes there is a unique groundwater smell
- Fresh cuts: the strongest odor, the internal compounds exposed
The intensity of the odor varies greatly with the state of the mushroom:
- Freshly collected specimens have the most obvious odor
- Slightly wilted mushrooms sometimes have stronger odor (reduced moisture, concentrated compound)
- The smell of elderly or dry specimens is weakened or changed
- Certain species only release odor after friction or heating
I use these professional tips when the odor is not obvious:
- Seal the mushrooms in a small glass jar or plastic bag for 15-30 minutes
- Gently crush a small piece of bacteria with the back of the knife
- Hold the mushrooms in your hands for a few minutes and use body temperature to release volatile compounds
- Cut open the stem to observe internal changes
Almond/Apricot aroma (chanterelles)
- Sweet, fruity, reminiscent of ripe apricots or bitter apricot kernels
- Very stable and highly characteristic
- is a key identification feature of Chanterelles and is hardly confused with other mushrooms
Fennel/Licorice Flavor (certain genus)
- Sweet spice odor, similar to star anise or licorice
- About 15% of people cannot perceive this odor due to genetic differences
- If you can't smell it, don't force confirmation, rely on other features
Flour/cucumber flavor (many Agaricus)
- A faint smell of fresh flour or cut cucumber
- Fresh, neutral, usually indicating that mushrooms are fresher
- Confirmation of white spore prints and bacterial folds
Coconut aroma (certain Lactobacillus)
- Gentle coconut milk or coconut oil aroma
- Usually weak and requires careful identification
- As an auxiliary feature in the identification of Lactobacillus genus
Rose/Floral (certain rosy mushrooms)
- Elegant light floral scent, similar to roses or violets
- Usually very weak and needs to be detected in an ideal state
- It is a key feature of some rare red mushrooms
Typical mushroom flavor
- The basic smell of most edible fungi
- Earthy, mild, not particularly strong
- The value of identification itself is limited, but it is useful when excluding other features
Totally tasteless
- Many mushrooms don't have obvious smell
- This is also a valuable information that excludes species with strong odors
- Make sure the olfactory system is not tired during testing
Garlic/Onion Flavor (garlic)
- Strong and characteristic, similar to crushed garlic
- It is a clear indicator of certain types of genus genus squid
- Edible and delicious seasoned mushrooms
Radish flavor (certain silk-covered umbrella)
- Spicy rhizomes, similar to fresh radish
- Warning odor - Many silk umbrellas contain highly toxic compounds
- Extremely cautious when encountering such odors
Gas odor/chemical taste (certain genus )
- Similar to coal tar, chemical ink or phenol
- A noticeable unnatural odor that indicates the possible presence of toxic compounds
- Absolutely inedible
Carrion/feces flavor (phaleblower)
- Strong rotten smell, similar to rotten meat
- is a characteristic of the Phalomaceae family, used to attract flies to spread spores
- Although the smell is bad, some species are edible when young
Moldy/stale
- Similar to moldy basement or damp cardboard
- Usually indicates that the mushrooms are not fresh or begin to break down
- Possible for harmful bacteria and should be avoided
Spicy/stimulating taste
- A pungent, frowning smell
- Characteristics of certain lactobacillus or red mushrooms
- Possibly indicated to contain irritating compounds
Record odors with consistent vocabulary:
- Pleasant/Unpleasant
- Sweet aroma/spicy/sour flavor
- Strong/Medium/Weak/No
- Fruit aroma/spice/flower/chemistry
Comparison with familiar items:
- "Like bitter almonds"
- "Like a cut cucumber"
- "Like kerosene"
- "Like a rotten fish"
The four-level system I use:
- None: No detection at all
- Weird: You need to smell carefully to detect
- Medium: obvious but not strong
- Strong: Immediately detect, fill the surrounding air
During my years of field work, taste testing has helped me solve countless identification problems.Especially for:
- Lactobacillus: Spicy, mild or bitter are key classification characteristics
- Red Mushroom: Taste is an important indicator to distinguish edible and toxic species
- Boletus: Direct correlation between bitterness and edibleness
The taste characteristics of mushrooms are usually direct manifestations of their chemical defense systems:
- Spicy flavor comes from defense compounds such as isothiocyanate
- Bitter often comes from alkaloids and terpenes
- These compounds warn potential users, including humans
Taste tests are only considered in the following situations:
1. You have at least one year of mushroom identification experience
2. You have excluded highly toxic species such as Amanita through other characteristics
3. Reliable identification references clearly require taste testing
4. You have expert guidance or have practiced skills on the safety category
- Any mushroom that may belong to the genus Amanita (unless you are a professional mycologist)
- A totally unrecognizable mushroom species
- Types of contact toxins known to contain (such as some silk cover umbrellas)
- You are not familiar with the security testing procedures
- When there is an oral ulcer or wound
After years of improvement, I recommend the following steps:
1. Select fresh, pest-free specimens and cut a small piece of the edge of the pellet (about the size of a small nail)
2. Sniff it first and be mentally prepared
3. Place it on the front of the tip of the tongue and do not chew it immediately
4. Chew gently for 5-10 seconds and pay attention to the development and changes of taste.
5. Use your tongue to push the mushrooms to different areas of the mouth to test the overall taste
6. Completely spit out all materials within 15 seconds
7. Wash your mouth thoroughly twice with clean water
8. Wait for 30 minutes before eating or testing other mushrooms
- Absolutely don't swallow any part, even the juice
- The test volume is controlled to a minimum--the size of pea is sufficient
- If the taste is extremely irritating or burning, spit out immediately and rinse your mouth
- Do not eat immediately after the test to avoid confusing possible delayed reactions
- Carry drinking water with you for mouth rinsing
- No obvious or light mushroom flavor
- Neutral or mildly pleasant
- Characteristics of most edible mushrooms, such as mushrooms, delicious bolete
- Pleasant taste similar to roasted nuts
- Characteristics of certain boletus and syrup
- Usually indicates good edible quality
- A distinct and lasting bitter taste
- Usually unpleasant
- Common in inedible boletus and other species
- Bitter taste usually doesn't disappear from cooking
- A burning feeling similar to black pepper or chili
- Key identification characteristics of Lactobacillus and Rhizoma
- The intensity varies greatly, from mild to extremely strong
- Usually delay occurs (may take 10-15 seconds)
The spicy rating I used:
- Gentle: a slight warmth
- Medium: obvious peppery but not uncomfortable
- Spicy: Strong burning sensation
- Extremely spicy: unbearable scorching heat
- A faint sweetness, similar to beet or corn
- Rare in mushrooms
- Characteristics of certain rare species
- A scent similar to rust or ink
- Usually unpleasant
-Can occur when some mushrooms are aged or damaged
Lactobacillus is a group I often rely on taste tests.Types with similar appearances may have completely different edible values:
- Delicious Lactarius deliciosus: mild or slightly nutty flavor, high-quality edible mushroom
- Lactarius piperatus: extremely spicy, inedible
-Lactarius uvidus: mild first and then spicy, do not eat raw
Key confirmation steps:
1. Confirm that there is milk (determined characteristic of Lactobacillus)
2. Observe the color change of milk
3. Obtain white spore prints
4. Finally, taste test confirmation
There are many types of red mushrooms, and taste is the key distinction feature:
- Edible red mushrooms (Russula vesca): mild, high-quality food
- Spicy red mushroom (Russula emotica): extremely spicy, poisonous
- But please note: this is not an absolute rule, some mild-tasting red mushrooms are also poisonous
Among boletus, the taste is directly related to the edible quality:
- Delicious Boletus edulis: mild or nutty flavor, top edible
- Tylopilus felleus: extremely bitter and inedible
- Certain toxic species may also have a bitter taste
The texture reflects the microscopic mycelial structure of mushrooms and can provide important classification clues:
- The brittle texture indicates that the mycelium structure is spherical
- Fibrous texture indicates parallel mycelium structure
- These characteristics are particularly valuable at the family level
As a cooking enthusiast, I attach great importance to texture characteristics:
- Crispy mushrooms are suitable for quick stir-frying
- Meaty mushrooms are suitable for stewing and cooking
- Gluten mushrooms are suitable for soup
- Predict the cooking effect before understanding the texture of the pot
Observe before touching:
- Surface gloss: waxy or dry
- Structural density: tight or loose
- Moisture content: full or wilted
Using a systematic touch method:
- Use your fingers to lightly press different parts to test elasticity
- Gently twist the bacterial stem to test fibrous properties
- Press the cap with your nails to test for brittleness
- Always start with a gentleness to avoid damage to the specimen
Internal structures often provide key information:
- Vertical tearing of bacterial stalks to observe the fiber direction
- Horizontal cut of the bacterial cap to observe the thickness of the meat
- Pay attention to juice secretion and color changes
feature:
- Break into regular chunks with light pressure
- Similar to chalk or cookies to break
- Almost inelastic, direct fracture
Representative groups:
- Lactobacillus
- Red Mushroom
- This is the key identification feature of these two genera
Professional test:
- Gently press the edge of bacteria frills
- It should be neatly broken into small pieces, not bends
- The stem also exhibits similar brittleness
Validation value:
- Fragile pleats point immediately to Lactobacillus or Rhizoma
- Confirmation based on other characteristics (milk, spore color)
feature:
- Difficult to tear or cut
- Leather or rubber-like elasticity
- Partially restored to its original shape after bending
- The fibrous structure is obvious
Representative groups:
- Most wood-raw mushrooms
- Porous bacteria
- Certain ring-stem mushrooms
Validation value:
- Usually indicated as a wood decompositioner
- Most of them are not suitable for consumption because they are too hard
- This texture is common in perennial species
feature:
- Smooth, thick, translucent
- A touch similar to candles or soap
- Rub with your fingers to make a special smooth feeling
- Bacteria folds are usually thicker and sparse
Representative groups:
- Hygrocybe
- Certain wet umbrellas
Test method:
- Gently rub bacteria with your fingers
- The waxy pleats feel thick and smooth
- Always accompanied by bright colors
feature:
- Similar to fiber bundles or meat textures
- Can be torn longitudinally into strips
- Not easy to break into pieces
- There is a distinct filamentous structure
Representative groups:
- Most silk cover umbrellas
- Certain genus genus
- Most honey worms
Observation skills:
- Tear the stalks longitudinally to observe the fiber bundle
- Pay attention to the thickness and strength of the fiber
- Fibrous is often combined with toughness
feature:
- Thick but soft and juicy
- Muscle or fresh fruit
- Easy to cut, neat incisive
- Rich juice, obvious weight
Representative groups:
- Most boletus
- Mushroom
- Most Much Mushrooms
Validation value:
- Usually a characteristic of good edible fungi
- But this cannot be used to judge edible
- Comprehensive judgment based on other characteristics
feature:
- Apparently like jelly or gel
- Translucent, rich in moisture
- Smooth, elastic
- Significant shrinkage during drying
Representative groups:
- Tremella
- Glycidobacteria
- The stem or skin of certain mushrooms
Observation method:
- Feel elastic and smooth when touched
- Cut open to observe moisture and transparency
- Usually very obvious, no complicated testing required
feature:
- Similar to natural sponge
- Porous, compressible, rebound
- Lightweight, strong water absorption
- Usually related to porous structures
Representative groups:
- The tube hole layer of bolete
- Certain porous bacteria
- Partial structure of morels
Testing Tips:
- Gently press to observe the rebound
- Pay attention to compression rate and recovery speed
- Often combined with other textures
feature:
- Dry, hard, light weight
- Similar to balsa or cork
- Not easy to cut off, need to use force
- There is a hollow sound when knocking
Representative groups:
- Hoofed Pores
- Most porous bacteria
- Aging specimens
Observation points:
- Touch-sensing hardness and dryness
- Try cutting to evaluate resistance
- Usually characteristics of perennial species
Different parts of a mushroom often have different textures:
- Cover: May be meaty or crisp
- Fungus folds/holes: brittle, waxy or sponge
- Trapezoid: fibrous, brittle or hollow
The standardized description I used:
Texture changes with life cycle:
- Childhood: usually solid and tight
- Maturity: To achieve the best texture
- Elderly: May become hard, timbered or softened and rotted
- After drying: usually hard and brittle
As a food lover, I think it is crucial to understand the texture of cooking:
- Predict the taste of the final dish
- Choose the most suitable cooking method
- Avoid wasting quality ingredients
- Only test 100% confirmed edible types
- First try new species and eat only a small amount (one tablespoon)
- Certain mushrooms must be cooked to be safe (such as more l)
- Understand personal allergies history and tolerance
Based on hundreds of cooking experiments, I concluded:
Stay solid (shiitake mushrooms, oyster mushrooms)
- Suitable for: stir-frying, roasting, stewing
- Features: Keep the shape after cooking and have a solid texture
Become creamy (boletus, mushrooms)
- Suitable for: stew, soup, sauce
- Features: Soften after cooking, rich taste
Become gum (Tremella, fungus)
- Suitable for: soup, dessert, cold mix
- Features: Release gelatin, smooth and tender texture
Become crispy and tender (chanterelles, coral fungi)
- Suitable for: quick frying, frying
- Features: Keep it slightly crisp and unique in taste
Become tough (some mushrooms)
- Avoid eating or long-term stewing
- Features: The harder it becomes, and it is difficult to chew
When leading the team to conduct field visits, I often observe:
- About 15% of people have no sense of the smell of fennel (hereditary)
- The individual difference in spicy taste perceived threshold can reach 300%
- Texture description often has subjective deviations
- Form a 2-3-person group for cross-verification
- Use standardized references to calibrate perception (such as comparison of chanterelles with almond essential oil)
- Understand and record your own perceived characteristics and limitations
- Regularly compare descriptions with experienced peers
Even for the same species, sensory characteristics may vary:
- Young specimens usually have a lighter odor and a firmer texture
- Characteristic peaks reached during maturity
- Alternative specimens change their odor and deteriorate their texture
- Growth matrix affects compound production
- Observe and record multiple specimens of different maturity levels
- Indicate the weather conditions and growth environment at the time of collection
- Understand the range of known variations in this species
- Conservative judgment when uncertain
Although sensory traits are extremely valuable, it is important to remember:
- The final identification cannot be done by relying solely on smell or taste
- Must be used in combination with morphological characteristics
- Ecological and seasonal information must be considered
- Objective characteristics such as spore printing are more reliable
The decision tree I use:
Odor characteristics + taste characteristics + texture characteristics + macromorphism + microscopic characteristics + spore printing color + ecological information + seasonal factors = reliable identification
After years of optimization, I recommend the following recording format:
[Main Type], [Strength Level], [Special Description], [Test Method]
[Tested/Untested], such as tests: [Type], [Strength], [Delay Time], [Duration]
Cover: [Description], [Thickness], [Elasticity]
Bacteria folds/holes: [Description], [Epiphyseal Method], [Reaction Test]
Trapezoid: [Description], [Internal Structure], [Fibrous]
Base: [Description], [Special Structure]
[Any other sensory characteristics], [change situation], [comparative notes]
- β Always use fan method to avoid direct inhalation
- β Test fresh specimens to avoid stale materials
- β Let the smell rest between multiple tests
- β Keep a larger distance when suspected of toxic species
- β Record test conditions and environmental factors
- β Only when you have sufficient experience and knowledge
- β Strictly abide by the principle of "biting but not swallowing"
- β Minimum test quantity (pea size)
- β Spit out immediately and rinse your mouth thoroughly
- β No food within 30 minutes after the test
- β Absolutely no test for any kind of Amanita
- β Don't test any unfamiliar mushrooms
- β Do not skip the mouthwash step
- β Systematically test different parts
- β Start with gentle testing and step by step
- β Record the unique characteristics of each part
- β Pay attention to key identification characteristics such as brittleness
- β Combining vision and touch comprehensive judgment
Smell, taste and texture are unique and powerful tools in the mushroom identification toolbox.Although they are subjective at first sight and difficult to master, as experience accumulates, you will be able to identify and utilize these traits like a professional mycologist.The iconic odor of certain mushroomsβsuch as the apricot aroma of chanterelles or the garlic aroma of garlicβcan be instant identification and save a lot of time and effort.
- Safety is always the first principle of sensory testing
- Increase record value using standardized terms
- Systematic testing methods ensure reliable results
- Comprehensive judgment based on all available features
- Understand and respect the limitations of each tool
Starting today, sensory features are systematically recorded in every field collection.It may feel difficult at first, but in a few months you will find yourself building a "sensory library" that is able to:
- Identify common types by smell
- Classification attribution through texture prediction
- Safe and effective use of taste tests
- Confidently distinguish similar species
Sensory features are an important part of identifying puzzles, but not all.They complement rather than replace traditional morphological identification.Certain features (such as fragile pleats) have high identification value, but must be combined with other evidence.
As you check out more and more mushrooms, your sensory acuity will continue to improve.You will build a rich "smell archive" and "texture memory" in your mind, making these seemingly subjective traits reliable identification tools.
Walk into the forest and start your journey of sensory exploration β May every discovery be safe and full of surprises!
*This article is based on 20 years of professional mycology research and field practice experience.All safety advice should be strictly followed.When trying a new species for the first time, it is recommended to travel with local mycology experts or participate in organized mushroom identification activities.*
1. Life safety first: There are inherent risks in the identification of wild mushrooms.Many toxic mushrooms look very similar to edible mushrooms, and accidentally ingesting them can lead to serious illness or even death.
2. Professional identification required: Before eating any wild mushrooms, 100% confirmation must be performed by a professional mycologist or certified mushroom identification expert.Photos, text descriptions and personal experience are not sufficient to ensure safety.
3. Individual Differences: Even recognized edible mushrooms may cause adverse reactions due to factors such as personal constitution, allergic reactions, consumption method or mushroom growth environment.Try in small quantities when eating a new variety for the first time.
4. Geographical differences: There are huge differences in mushroom species and toxicity in different regions.The information mentioned in this article may not apply to your region.Please consult local mycology experts and authoritative organizations.
5. Professional Responsibility: The author and the publisher shall not be liable for any direct or indirect damage, disease or loss arising from the use of the information in this article.
- β Participate in formal mushroom identification training courses
- β Join the local mycology association or mushroom club
- β Purchase cultivated mushrooms from reliable sources
- β Save mushroom samples for emergency medical needs
- β Do not eat it if you have any doubts