| 18 Products | Mar 2025 | Mar 2026 | Change |
| Idahoan Perfect Mash Snack Pot (55g) | £1.00 | £1.00 | £0.00 No change |
| | £1.00 | £1.00 | £0.00 No change |
| 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) | £1.50 | £1.70 | + £0.20 13.3% increase |
| | £1.50 | £1.70 | + £0.20 13.3% increase |
| M&S Gastropub Maris Piper Mashed Potato Side () | £3.75 | £3.75 | £0.00 No change |
| | £3.75 | £3.75 | £0.00 No change |
| | £1.13 | £1.25 | + £0.12 10.6% increase |
| | £1.13 | £1.25 | + £0.12 10.6% increase |
| M&S Buttery Mash Potato (450g) | £2.75 | £3.00 | + £0.25 9.1% increase |
| | £2.75 | £3.00 | + £0.25 9.1% increase |
| Idahoan Perfect Mash Cheddar Cheese Flavoured (109g) | £1.50 | £1.70 | + £0.20 13.3% increase |
| | £1.50 | £1.70 | + £0.20 13.3% increase |
| M&S Colcannon Potato Mash (450g) | £3.00 | £3.00 | £0.00 No change |
| | £3.00 | £3.00 | £0.00 No change |
| Mash Direct Mashed Swede (400g) | £1.75 | £1.75 | £0.00 No change |
| | £1.75 | £1.75 | £0.00 No change |
