| 10 Products | May 2023 | May 2024 | Change |
| Grumpy Mule Colombia Coffee Beans (500g) | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| Grumpy Mule Organic Colombia Ground Coffee (227g) | £5.50 | £5.50 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
| Grumpy Mule Landscape Coffee Beans (500g) | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| Grumpy Mule Sumatra Coffee Beans (500g) | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| Grumpy Mule Organic Shakisso Ground Coffee (227g) | £5.50 | £5.50 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
| Grumpy Mule Organic Sumatra Coffee Beans (227g) | £5.50 | £4.50 | - £1.00 -18.2% decrease |
| | £5.50 | £4.50 | - £1.00 -18.2% decrease |
| Grumpy Mule Peru Coffee Beans (500g) | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| Grumpy Mule Organic Peru Ground Coffee (227g) | £5.50 | £5.50 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
| Grumpy Mule Organic Seasonal Swiss Water Decaff Ground Coffee (227g) | £6.20 | £6.20 | £0.00 No change |
| | £6.20 | £6.20 | £0.00 No change |
| Grumpy Mule Organic Sumatra Ground Coffee (227g) | £5.50 | £5.50 | £0.00 No change |
| | £5.50 | £5.50 | £0.00 No change |
