Mason Jars

(1 customer review)

£3.50 inc. VAT

Used extensively by amateurs and professionals world-wide, mason jars are synonymous with the mushroom cultivation industry. Our UK manufactured, Kilner mason jars are suitable for spawn runs, liquid cultures, BRF cakes or even bottle grows.

We offer two of the most popular mason jar sizes, 1 litre & 0.35 litre – These jars are also known as canning jars or preserving jars.

Our larger 1 litre mason jars are often used for grain spawn production for which they are perfect.

Our smaller 0.35 litre jars have a slight taper and smooth inside. Commonly used for making larger sized BRF cakes and to store liquid cultures.

Lids can be easily modified with injection ports, syringe filters or to simply have holes punched to allow for adequate air exchange if using Tyvek as your filter.

  • Wide-mouth openings
  • Fits our reusable Synthetic Filter Discs
  • Interchangeable and reusable lids & bands
  • Fully autoclaveable
  • Airtight
  • Made in the UK by Kilner

For replacement jar lids and collars, please visit our Replacement Lids & Rings (Mason Jars) listing.

Purchasing Disabled

Due to recent flooding in our warehouse and processing facilities, we're only accepting orders for a limited number of our products, which are available for purchase on our eBay store.

£3.50 inc. VAT

Purchase one of these today to earn ~3 POINTS worth £0.15 to redeem on your next order.
Purchase one of these today to earn ~3 POINTS worth £0.15 to redeem on your next order.
Shipping & Returns info | Free Shipping Available Over £90 🚀
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5-Star Customer Testimonials

Over 2,300 rave reviews and counting! Here's a random selection (different on every page)...

Very Professional service. Easy to get in contact with and they gave me updates about my order as it was out for delivery. If directions are followed then you'll have no issues. Highly recommend.

⭐⭐⭐⭐⭐Andrew Broderick on Google

Fast delivery, good product, always had successful fruiting with maya. Going to try lions mane next. Meant to be good for preventing dementia and we have never been able to find them when foraging.

⭐⭐⭐⭐⭐Carly Gilmour on Google

Every single bag worked absolutely fine from the second it innoced, it had healthy white myc eating at it in no time! And getting the bag to fruit could not be any simpler! Amazing bags! Will always come back for sure! Thanks, Ben.

⭐⭐⭐⭐⭐e chalk on Google

Delivery, quicker than expected. High quality product as well. Very pleased with the purchase. Many thanks. 😀

⭐⭐⭐⭐⭐Dan Eggleton on Google


No fuss Shipping, Returns & Guarantee.

  • We aim to dispatch orders within 2 working days (Monday-Friday)
  • Free shipping option for orders over £90.00 - Shipping Policy
  • No questions asked returns & refunds policy - Returns & Refunds Policy

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Additional information


1 review for Mason Jars

  1. Alan

    these smaller jars are bigger than normal jam jars and fit snugly inside my pressure cooker. Used for making BRF cakes as advertised. Good quality and genuine jars.

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