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Grow Sow Greener

Mushroom Mason Jar: Injectable Liquid Culture Lid Supplies

Mushroom Mason Jar: Injectable Liquid Culture Lid Supplies

Regular price £5.95
Regular price Sale price £5.95
Sale Sold out  Ships Monday 12th May 
Quantity

By Grow Sow Greener – UK-Based Quality Cultivation Gear

Our two-piece liquid culture lids offer the perfect blend of durability and value. Each lid features a lifetime 304 stainless steel outer band paired with a robust, reusable tinplate insert designed to withstand many sterilisation cycles. For added convenience and longevity, each lid comes with a spare tinplate insert.

Each lid features:

  • A medical-grade 0.22µm PTFE hydrophobic syringe filter, which blocks contaminants while enabling essential gas exchange.

  • A self-healing injection port for sterile, hassle-free inoculation of your liquid culture jars.

  • Fits wide mouth jars - 86mm

Key Features

  • Durable Outer Band
    Crafted from food-grade 304 stainless steel, the outer ring is built to last a lifetime—even through repeated autoclave cycles.

  • Economical Inner Plate
    The removable tinplate disk keeps costs low and is easily swapped out after extended use or contamination concerns.

  • Precision Silicone Seal
    Each lid includes a fitted, reusable silicone seal to ensure a tight, reliable closure—even when inverted.

  • Advanced 0.22µm PTFE Filter
    Hydrophobic and sealed with high-temp RTV silicone to prevent leaks and contamination while allowing sterile gas exchange.

  • Heavy-Duty Injection Port
    The self-healing port provides clean, repeatable access for spores or mycelium and is simple to replace when needed.

Specialised Design for Liquid Culture:

Optimised for sterile liquid culture growth, these lids offer a clean, professional setup. For applications requiring higher fresh air exchange (like grain spawn), please see our alternative lid designs.

Superior to Plastic Lids:

Plastic lids often warp, degrade, or leak over time. Our hybrid system—with a rugged steel band and cost-effective tinplate insert—offers the perfect balance of durability, hygiene, and value for your mushroom cultivation workflow.

 

Shipping

Delivery Costs

Our shipping is broken down into two categories and are dispatched the same or next day as standard.

1. Unlimited "Small" (Garden) Seed Packets:

- Including wooden plant markers and sprouting bags.

- £1.99 - Standard Delivery 2 - 4 business days.

- £4.90 Express Delivery 1 - 3 business days

2. Everything Else - Sprouting and Microgreen Seeds, Growing Equipment, Gifts and Grow Kits:

UK Mainland.

- £3.85 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.

- £6.50 - Next Day Courier Service on orders 0 - 4.5kg.

- £8.95 - Next Day Courier Service on orders over 4.5kg.

- Contact us for a quote on orders over 26kgs.

Ireland, Northern Ireland, Isle of Man, Guernsey and Jersey.

- £9.45 - Standard Delivery (2 - 4 business days) on orders between 0 and 2kg.

- £23.50 - Standard Delivery on orders 2kg - 26kg.

- Contact us for a quote on orders over 26kg.

The EU, Switzerland and Rest of World.

Get in touch for equipment sales to the EU and the rest of the world for a competitive shipping quote. Unfortunately we cannot yet post seeds outside the UK.

Delivery and Packaging

All products are packaged plastic free as standard. Your garden seeds are sealed for freshness inside white glassine envelopes which are a water/vapour resistant compostable paper product whilst your Microgreen and Sprouting Seeds arrive in resealable zip lock pouches made from GMO free vegetable starch which are further heat sealed to ensure these great products reach you safely!

Returns Policy

We hope you are loving your purchase however we understand that sometimes things don't go as planned and returns and refunds are necessary. Please refer to the following return and refund policies at growsowgreener.co.uk.

My product is damaged defective or you shipped me the wrong product.

We're sorry about that and understand your frustration! We would love to offer you a refund or a replacement. Please contact us at hi@growsowgreener.co.uk within 30 days of purchase for a full refund or replacement. 

I ordered the wrong product or simply changed my mind.

No worries, we will refund you the full amount (minus the shipping charges) provided the items are returned in new condition and in original packaging. Once received we will issue your refund however you will be responsible for return shipping costs for non defective products.

Please post to:

Grow Sow Greener

RETURNS (order number)

5 Longfields

West Alvington

Devon TQ73QG

UK

Guaranteed to grow promise.

Should you have absolutely any problems issues or difficulties getting your seeds to germinate or problems/queries regarding our grow kits or equipment, please get in touch at hi@growsowgreener.co.uk and we will strive to help you out via email, call or video call.

All our seeds and products have been tested here by us however if we still cant help you get growing we will offer a free replacement.

Unfortunately, we cannot accept returns on gift cards.

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