portobello mushrooms
Worth a lookShows low returns (0.0%), but soft demand (-26.7% this quarter) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Great12.0%search→purchase rate — share of searches ending in a sale
Review moat
Great289.79avg incumbent reviews — the moat a new listing must climb
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Brand share
Good72%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Price range
Good£1.03–£29.16cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£11.08avg listing price — sweet spot $15–$100
Market size
Bad£63K£63K/yr · 47K searches
Growth
Bad-26.7%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, portobello mushrooms is a £63K/yr Amazon United Kingdom market (47K searches/yr). The top 5 brands hold 72% of demand. Demand peaks in Jan–Sep–Oct–Nov–Dec. Verdict: Worth a look — 53/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
portobello mushrooms market data
- Units sold / yr
- 5K–6K
- avg 100–250/product
- Revenue / yr
- £55K–£66K
- units × avg price
- Conversion rate
- 12.0%
- Avg BSR
- #108
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 58%
- Out of stock
- 11.0%
- Avg brand age
- 54 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
17 falling
Sellers
34
Top-5 brand share
72%
Top 20: 100%
Top-5 click share
47%
Top 20: 96%
Open market
21%
- Vigorous Mountains22%
- East Asia Brand16%
- Yutaka15%
- GOLDEN SWAN10%
- Emma Basic9%
- Morrisons8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -26.7% search growth over the last 90 days.Peak months: Jan, Sep, Oct, Nov, Dec · busiest ÷ quietest = 3.4×
Top portobello mushrooms search terms
- shiitake mushrooms26K/yr
- dried shiitake mushrooms14K/yr
- shiitake3K/yr
- shitake2K/yr
- dried shiitake2K/yr
Top portobello mushrooms products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
East Asia Brand Dried Shiitake Mushroom - 60g (Pack of 1)
East Asia Brand£5.724.3★160 rev
Yutaka - Dried Shiitake Mushrooms 30g - Premium Donko Winter Mushrooms - Rich Umami Flavour Vegan Friendly - High Fibre & Protein - Perfect for Soups Stir-Fries Risotto & Broths
Yutaka£3.154.3★441 rev
Golden Swan Dried Shiitake Mushrooms 1 kg
GOLDEN SWAN£23.374.5★421 rev
VIGOROUS MOUNTAINS Dried Shiitake Mushrooms for Cooking Pure Aroma Thin Cap Without Stem Rehydrate Quickly Soft Texture Gourmet Dried Mushrooms Shiitake 100g
Vigorous Mountains£11.704.5★306 rev
VIGOROUS MOUNTAINS Dried Shiitake Mushrooms for Cooking 2-3CM Dehydrated Mushrooms Dry Fresh Vegan No Fumigation Sulfur (4Oz) 113.4 Gram
Vigorous Mountains£6.964.3★780 rev
Newest
by launch date
Morrisons The Best Shiitake Mushrooms 130g
Morrisons£2.1091 rev
Yutaka Sliced Dried Winter Shiitake Mushrooms 500g | Rich Umami-Rich Japanese Shiitake Ideal for Soups Ramen Broths & Stir-Fries
Yutaka£14.738 rev
Chestnut Mushrooms 340g
Morrisons£1.65411 rev
VIGOROUS MOUNTAINS Organic Shiitake Mushrooms Sliced Great Size Fresh Texture Rehydrate Quickly Dried Shiitake Mushrooms for Cooking Soups Ramen Pasta and Risotto All Natural Vegan 100g
Vigorous Mountains£8.95452 rev
FuRui Dried Shiitake Mushrooms 1kg
CAPACITEA£22.2710 rev
Trending
90-day click momentumChestnut Mushrooms 340g
Morrisons£1.654.6★
VIGOROUS MOUNTAINS Organic Shiitake Mushrooms Sliced Great Size Fresh Texture Rehydrate Quickly Dried Shiitake Mushrooms for Cooking Soups Ramen Pasta and Risotto All Natural Vegan 100g
Vigorous Mountains£8.954.5★
East Asia Dried Abalone Shiitake Mushrooms 200g- Thick-Cap Chinese Mushrooms for Gourmet Soups & Festive Dishes
East Asia Brand£6.634.6★
by Amazon Chestnut Mushrooms 250g
by Amazon£1.034.7★
Organic Shiitake Mushroom 7500mg 50% Polysaccharides Extract Mushroom Supplement 90 Vegan Capsules (3 Months Supply) Resealable and Recyclable Pouch By Alpha01
ALPHA01£7.504.2★
What buyers say about portobello mushrooms
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent product”
“you can get cheaper”
“Great fungi”
“Super fresh”
“focus has improved”
“Very useful”
“Very good helps me sleep at night and stay asleep”
“Lovely and crisp”
“nice size - cooks well”
“Yeh good feel a bit more energetic all road”
What buyers complain about
“A very big bag”
“don't see or feel any result”
“Started taking these, still sceptical about tablets form over actual powder to put in drinks, food ect”
“They are the thinner”
“Waste of time”
“Quality below standards”
“only lasted a month before going mouldy”
“don't see or feel any result”
“Dry out quickly”
“still taking them even though the effect is not obvious”
Top return reasons
Common questions
- Is portobello mushrooms profitable to sell on Amazon United Kingdom?
- The niche generates £63K/yr across 24 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -26.7%. Flapen's verdict: Worth a look (53/100).
- How competitive is the portobello mushrooms niche?
- 17 brands and 34 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 72% of demand.
- What do buyers complain about in portobello mushrooms?
- Top complaints mined from reviews: Size-Overall, Functionality-Overall, Dosage. The return rate is 0.0%.
- When does demand for portobello mushrooms peak?
- Demand peaks in Jan–Sep–Oct–Nov–Dec; the busiest month runs 3.4× the quietest.
- What does it cost to enter the portobello mushrooms niche?
- Listings span £1.03–£29.16; the average listing price is £11.08 (sweet spot $15–$100). The average incumbent carries 290 reviews — the moat a new listing must climb.