Calcium carbonate ground chalk 2250 grams
Do you want to grow mushrooms on a vegetable garden scale and have you followed our online training ? Then you know how important it is to add calcium carbonate or ground chalk to your coffee grounds substrate.
This product contains 2.25 kilos and is sufficient to fill 10 substrate bags of 4.5 kilos each.
We aim to ship your package within 2 to 4 business days. You can find all the information about our shipping policy here .
Shipping within the Netherlands
Shipping costs within the Netherlands are €6.99 for a parcel and €2.79 - €4.50 for a letterbox parcel.
Boxo: reusable shipping packaging
Want to reduce waste at home and have up to 10x less environmental impact than disposables? Don't throw away reusable shipping packaging, but return it so it can be reused. Find more information about Boxo and drop-off points here .
PostNL
Delivery is via PostNL's mail carrier or parcel delivery person. Parcels contain a track and trace code that you will receive by email after receiving your order from PostNL. Unfortunately, we cannot guarantee delivery times for PostNL.
Pick up your order
When checking out, you can indicate that you'd prefer to collect your order from our nursery in Rotterdam. You'll receive a confirmation once your order is ready, and you can then pick it up at Schiehaven 26, Monday through Friday, between 9:00 AM and 4:00 PM.