| 22 Products | Jun 2024 | Jun 2025 | Change |
| Idahoan Perfect Mash Snack Pot (55g) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| M&S Buttery Mash Potato (225g) | £2.50 | £2.75 | + £0.25 10% increase |
| | £2.50 | £2.75 | + £0.25 10% increase |
| Mash Direct Mashed Potato (400g) | £1.75 | £1.85 | + £0.10 5.7% increase |
| | £1.75 | £1.85 | + £0.10 5.7% increase |
| Idahoan Classic Mash (109g) | £1.50 | £1.50 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| Idahoan Perfect Buttery Mash (109g) | £1.35 | £1.25 | - £0.10 -7.4% decrease |
| | £1.35 | £1.25 | - £0.10 -7.4% decrease |
| M&S Gastropub Maris Piper Mashed Potato Side (450g) | £3.75 | £3.75 | £0.00 No change |
| | £3.75 | £3.75 | £0.00 No change |
| | £1.25 | £1.25 | £0.00 No change |
| | £1.25 | £1.25 | £0.00 No change |
| M&S Buttery Mash Potato (450g) | £3.00 | £3.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| Idahoan Perfect Mash Cheddar Cheese Flavoured (109g) | £1.35 | £1.25 | - £0.10 -7.4% decrease |
| | £1.35 | £1.25 | - £0.10 -7.4% decrease |
| M&S Colcannon Potato Mash (450g) | £2.80 | £3.00 | + £0.20 7.1% increase |
| | £2.80 | £3.00 | + £0.20 7.1% increase |
