Mushroom Cultures

SKU: 33815-P100

$16.95USD or lower Each

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Quantity1+2+ 3+ 10+ 100+ 
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[4.8]   12 Reviews    | Write a Review

Sterilize mushroom growth media safely with diluted H2O2 using Indigo™ 0-100ppm test strips, only $16.95 /100 strips. Buy more and save with our extended shelf life.

Our free hydrogen peroxide concentration calculator takes out the guesswork; no more waste.

Indigo™ brand hydrogen test strips are Made in USA & tested for accuracy using NIST compliant standards.

How to make sterile mushroom culture substrate ?

An important step in your mushroom spawn culture procedure is to ensure your bulk substrate is free of microbial contamination & can support mushroom mycelium growth. Low concentration hydrogen peroxide can ensure the best oyster or shiitake mushroom substrate by limiting fungus infection during mushroom cultivation. Use Indigo™ 100ppm hydrogen peroxide test strips whether you are a beginner growing mushrooms at home or for sale of edible commercial mushrooms

Buying a mushroom home gardening kit and worried that a moist, humid, enclosed container will promote bad bacteria or fungus? Use hydrogen peroxide to sterilize & check your solution with Indigo™ hydrogen peroxide test strips.

Use petri dishes for spore germination; they're sterile & inexpensive. If your interest in mushrooms extends beyond growing for profit, you may also find that a geology hand lens helpful out in the wild. Read our two blogs on magnifiers & mushrooms.

There are two hand lenses listed in the Related Products below. The smaller/cheaper one is fine for student use. Professionals may prefer the superior optics of the larger/more expensive one for looking at gills, mycelia, etc.
Related information or images
10 second response, readings at 0-1-3-10-50-100ppm for residual level hydrogen peroxide measurement.

  • Indigo™ test strips have a guaranteed minimum 3 year shelf life but are stored in desiccant lined vials so actual shelf life can be 5+ years.
  • For technical explanation read: Sanitizer Test Strip Expiration; Good Today, Dead Tomorrow?
  • The number of strips per vial (100) is approximate.
  • Suitable for detection of hydroperoxides and ether peroxides. Polymeric peroxides, which can form in diethylether, are not detected. Organic peroxides, such as di-terc-butyl peroxide, di-cumyl peroxide or terc-butyl perbenzoate, either do not react or react with significantly reduced sensitivity.

Test Strip Documentation

Stability Statement Certificate of Analysis SDS
Indigo Hydrogen Peroxide Test Strips 100ppm Stability Statement Indigo Hydrogen Peroxide Test Strips 100ppm Certificate of Analysis Indigo Hydrogen Peroxide Test Strips 100ppm SDS
Reviews (12)
Quick service and reliable products
Great customer service, arrived quickly, just as described, easy to read.
— Heide

Perfect to balance H2O2 in hot tub.

— Jonathan
— Indigo:

Good to know. Some of the hot tub vendors who have contacted us over the years recommend the 400ppm hydrogen peroxide strips. Both are effective but outdoor hot tubs may be more susceptible to windblown algae as well as H2O2 breakdown due to sunlight.

Excellent product , very east to read and quick results! Arrived sooner then expected!
— Rbarr1951
I really appreciate the great services provided by Indigo Instruments. My order was shipped in a timely manner and my customer was very happy to receive the test strips. Smooth transaction all the way around! Definitely recommend this company.
— Renee
Easy online ordering. Was ready for pick up in no time. Have always used these test strips from Indigo for testing my hot tub. They work great and are reasonably priced.
— Jim
Product works good, price seems reasonable. However, they didn't do what they said they would do for shipping. The site said orders before 11am shipped same day. My order was after 11am but, i felt it should be shipped next day which did not happen. It was handled as an order that came in after 11am the next day & then there was one more extra day delay for 'power outage'...disappointing!
— Wirkin Dawg
— Indigo: Sorry about that, have rewritten the guarantee. At least the product worked well!
Very fast shipping, good order accuracy. The test strips are a cost effective way to accurately manage residual H2O2 levels.
— InSPAration Float Centre
Great product, great service and great shipping speed! Will purchase again !!
— Brad

Great service; price and product. Canada Post dropped the ball. Paid extra for express post and package sat in Canada Post for 3 days then delivered on day 4.

— Indigo:

Thanks for the feedback. Many of our Canadian customers have had similar problems. This prompted us to write: Canada Post is in the way of small business competing against Amazon.


Great friendly service , always helpful and h202 strips high quality

— Carhi
Very happy with the ease of ordering, delivery time and the product is exactly what I was looking for. Great for any float centre for sure. Thank you
— Serenity Float Centre Inc.
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