🚀 Free shipping available for orders over £90

Damage Claim Form

Welcome to our dedicated claim form, which we’ve created to handle better any problems you may have experienced with our products.

Each week we sell 1,000’s of mushroom grow kits, sterilised grain & substrate bags, and general mushroom cultivation equipment to our wonderful customers, but sometimes problems happen 😢.

We go to great lengths to ensure each product we send out leaves our warehouse and processing facilities in tip-top condition, conducting numerous checks before dispatch. However, occasionally, our products may arrive damaged due to being excessively handled during transit, or very rarely, they may contain minor manufacturing faults.

We do our very best to correctly package our products with sturdy double-walled boxes and adequate internal protection but sometimes transit damage or other problems can occur. If your product is damaged we must file a damage claim with our couriers, who in turn require proof of damage and supporting information to be provided.

If you have received a damaged item or believe an item is faulty, please fill in the form below so that we can process your claim and investigate your issue.

Please provide all requested information or as much as possible to ensure your claim is processed quickly and efficiently. Thank you in advance and apologies for any inconvenience caused.

Allow us up to 2 working days to review your claim and reply. There is no need to contact us during this time.

Please keep hold of any items. We may ask you to return them for inspection before being able to process your case.

Frequently Asked Questions

My Sterilised Grain Bag / All-in-One Bag has contaminated after I've inoculated it

If you are seeing contamination after your bags have been inoculated, this would indicate that your syringe contained some level of contamination (which is very, very common) or that contamination was introduced during the inoculation procedure.

If using the same syringe for different bags, you might only contaminate one bag or all of them; it depends on how contaminated the syringe is, as it only takes one microscopic mould spore to contaminate a bag. Sterilising the needle or having perfect sterile technique and procedures, unfortunately, will also not remove the contamination from inside the syringe.

Leaving our bags for 1-2 weeks before inoculation, as outlined in the instructions, validates that the contents of the bags are perfectly sterile. This validation step proves the bags are contamination-free (else you would clearly see contamination growing throughout the entire bag). It allows people to identify the cause of contamination better if it is experienced later in the grow.

We sell 1000’s of bags each week, batch processed in our industrial autoclave for an extended 2.5hr cycle. After the sterilisation cycle, all bags are left for a minimum of two weeks and individually checked before dispatch. The sterilisation strip included on the bag also provides a visual confirmation of sterility. So I can say with a guarantee that every single bag leaves our warehouse perfectly sterile. We even use them ourselves in our own lab and commercial mushroom-growing facility.

Contaminated syringes are the most common cause of contamination, especially spore syringes, which are made from fresh mushroom caps grown in open-air, unsterile environments.

Why do I have to leave my bag for 1-2 weeks before I can use them

Leaving our bags for 1-2 weeks before inoculation, as outlined in the instructions, validates that the contents of the bags are perfectly sterile. This validation step proves the bags are contamination-free (else you would clearly see contamination growing throughout the entire bag). It allows people to identify the cause of contamination better if it is experienced later in the grow.

There is a small amount of water in my grain bag, is it faulty?

Sometimes small amounts of condensation form in the bag due to temperature fluctuations during transport, this is the only way grain can appear wetter than normal.

This condensation can be readily reabsorbed by the grain if mixed up thoroughly and allowed to sit for a couple of days.

To prepare our grain, we first boil it to hydration, it is left to steam dry on racks for about 30 minutes. The grain is then hydrated, yet dry to the touch, this is the only way we can put it through our bagging system. So all grain is bagged and dispatched the same.

This condensation should not affect the growth of mycelium, even if some grains are overly hydrated as a result of reabsorbing the condensation, the bag contents remain sterile. Regardless of the slight differences in appearance, you might be able to see in the bag, it’s all food for the mycelium at the end of the day and there is absolutely nothing to worry about.

There is burst grain in my bag, should I be concerned?

The burst grains are caused by condensation formation, which is a result of temperature fluctuations during shipment. This condensation can then super-hydrate some of the grains, causing them to burst.

The movement of the bags during transit can also cause some of the grain to be crushed. This is nothing to worry about and will not affect the growth of the mycelium in any way as mycelium will naturally colonise all parts of the grain whether split or not (it’s all food for them at the end of the day, they’re not fussy) and will not increase the chances of contamination.

It is good practice to mix the grain bags up upon receipt to redistribute the grain and any condensation, the grains will naturally absorb any condensation which might be present. You’ll see also by doing this that the burst grains are only on some areas that are touching the bag. Everything inside the bag will continue to remain sterile so you have no need to worry.

I've not seen any mycelial growth in my bag after inoculating my bag with spores, why is this?

If you are inoculating with spores, the germination and initial development time can vary greatly (1 week – 4+ weeks) which is one of the reasons why we generally recommend inoculating with a clean liquid culture instead of spores. There is a little more information on this in the included guide.

Be patient to see first signs of mycelial growth, it will come and once it starts, it will continue to grow at an expected rate.

How long have you been making sterile grain and substrate for? And how many bags have you produced to date?

To date, we have sold over 100,000 mushroom growing kits to hobby growers and countless sterilised bags of grain and substrate to commercial customers. We will continue to serve the wider mushroom cultivation community with advice and support. We’ve been doing this for 6 years, and have recently moved to our new 5,500sq.ft dedicated processing facility.


Please enable JavaScript in your browser to complete this form.

Your Order Details

Please provide information on your order.

Damage/Fault Information

What products are you reporting as damaged or faulty?

Name on Order
Damaged/Faulty Product(s):
Please upload photographic proof of damages in 'Photos of Damage' section below.
eg. 2 bags, 1 glass jar etc
Visible damage, unusual smells, anything which looks different than expected

Photos / Video of Damage

Please include as many photos of the damage as possible, including any subsequent contamination if visible. Examples have been given below. The more photos the better.

At a minimum, please include photos of:

  • Photos of damage
  • Photos of packaging box (if available)

For damaged grain/substrate bags or grow kits:

  • Photo of sterilisation indicator strip at top of bag (if present)
  • Full bag photo with bag tag number & filter visible (as shown below)
  • Close-up of injection port (as shown below)
  • Photo(s) of any contamination (as shown below)
  • Photo(s) of all contaminated bags together (as shown below)

We are unable to process claims without supporting photo evidence.
Please ensure photographs are clear, in focus, and contain all information requested above.

Click or drag files to this area to upload. You can upload up to 20 files.
Please upload at least 5 photos as evidence.
(Optional) If it's easier for you to send a link to a video of your product, ie, YouTube, you can put a link to it here. Please include footage of all points outlined above.

Your Contact Details

Your Ideal Resolution

Please select your preferred resolution from the 3 options below:

  • Refund on damaged item(s)
  • Send replacement item(s)
  • Credit against next order + additional £5 credit to spend on our website.

Photographic/Video Proof of Damage

Please ensure correct photographs or videos have been uploaded to this form in line with the guidelines.
We are unable to process damage claims without the correct supporting photograph/video proof and documentation.

A Big Thank You ❤️

Thank you for taking the time to fill out our form, the information you have kindly provided allows us to efficiently deal with your claim.

Please allow us a couple of working days to review your information and we'll contact you with an update.

Have a lovely rest of your day 🌞